It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 138 132 is not a prime number.
For example, 138 132 can be divided by 2: 138 132 / 2 = 69 066.
For 138 132 to be a prime number, it would have been required that 138 132 has only two divisors, i.e., itself and 1.
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138 132 is an even number, because it is evenly divisible by 2: 138 132 / 2 = 69 066.
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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 138 132 is about 371.661.
Thus, the square root of 138 132 is not an integer, and therefore 138 132 is not a square number.
The square of a number (here 138 132) is the result of the product of this number (138 132) by itself (i.e., 138 132 × 138 132); the square of 138 132 is sometimes called "raising 138 132 to the power 2", or "138 132 squared".
The square of 138 132 is 19 080 449 424 because 138 132 × 138 132 = 138 1322 = 19 080 449 424.
As a consequence, 138 132 is the square root of 19 080 449 424.
The multiples of 138 132 are all integers evenly divisible by 138 132, that is all numbers such that the remainder of the division by 138 132 is zero. There are infinitely many multiples of 138 132. The smallest multiples of 138 132 are: