It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 142 498 988 is not a prime number.
For example, 142 498 988 can be divided by 2: 142 498 988 / 2 = 71 249 494.
For 142 498 988 to be a prime number, it would have been required that 142 498 988 has only two divisors, i.e., itself and 1.
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142 498 988 is an even number, because it is evenly divisible by 2: 142 498 988 / 2 = 71 249 494.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 142 498 988 is about 11 937.294.
Thus, the square root of 142 498 988 is not an integer, and therefore 142 498 988 is not a square number.
The square of a number (here 142 498 988) is the result of the product of this number (142 498 988) by itself (i.e., 142 498 988 × 142 498 988); the square of 142 498 988 is sometimes called "raising 142 498 988 to the power 2", or "142 498 988 squared".
The square of 142 498 988 is 20 305 961 581 024 144 because 142 498 988 × 142 498 988 = 142 498 9882 = 20 305 961 581 024 144.
As a consequence, 142 498 988 is the square root of 20 305 961 581 024 144.
142 498 988 is a number with 9 digits.
The multiples of 142 498 988 are all integers evenly divisible by 142 498 988, that is all numbers such that the remainder of the division by 142 498 988 is zero. There are infinitely many multiples of 142 498 988. The smallest multiples of 142 498 988 are: