It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 165 162 is not a prime number.
For example, 165 162 can be divided by 2: 165 162 / 2 = 82 581.
For 165 162 to be a prime number, it would have been required that 165 162 has only two divisors, i.e., itself and 1.
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165 162 is an even number, because it is evenly divisible by 2: 165 162 / 2 = 82 581.
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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 165 162 is about 406.401.
Thus, the square root of 165 162 is not an integer, and therefore 165 162 is not a square number.
The square of a number (here 165 162) is the result of the product of this number (165 162) by itself (i.e., 165 162 × 165 162); the square of 165 162 is sometimes called "raising 165 162 to the power 2", or "165 162 squared".
The square of 165 162 is 27 278 486 244 because 165 162 × 165 162 = 165 1622 = 27 278 486 244.
As a consequence, 165 162 is the square root of 27 278 486 244.
The multiples of 165 162 are all integers evenly divisible by 165 162, that is all numbers such that the remainder of the division by 165 162 is zero. There are infinitely many multiples of 165 162. The smallest multiples of 165 162 are: