It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 120 137 is not a prime number.
For example, 120 137 can be divided by 19: 120 137 / 19 = 6 323.
For 120 137 to be a prime number, it would have been required that 120 137 has only two divisors, i.e., itself and 1.
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120 137 is an odd number, because it is not evenly divisible by 2.
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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 120 137 is about 346.608.
Thus, the square root of 120 137 is not an integer, and therefore 120 137 is not a square number.
The square of a number (here 120 137) is the result of the product of this number (120 137) by itself (i.e., 120 137 × 120 137); the square of 120 137 is sometimes called "raising 120 137 to the power 2", or "120 137 squared".
The square of 120 137 is 14 432 898 769 because 120 137 × 120 137 = 120 1372 = 14 432 898 769.
As a consequence, 120 137 is the square root of 14 432 898 769.
The multiples of 120 137 are all integers evenly divisible by 120 137, that is all numbers such that the remainder of the division by 120 137 is zero. There are infinitely many multiples of 120 137. The smallest multiples of 120 137 are: