It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 19 088 009 is not a prime number.
For example, 19 088 009 can be divided by 509: 19 088 009 / 509 = 37 501.
For 19 088 009 to be a prime number, it would have been required that 19 088 009 has only two divisors, i.e., itself and 1.
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19 088 009 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 19 088 009 is about 4 368.983.
Thus, the square root of 19 088 009 is not an integer, and therefore 19 088 009 is not a square number.
The square of a number (here 19 088 009) is the result of the product of this number (19 088 009) by itself (i.e., 19 088 009 × 19 088 009); the square of 19 088 009 is sometimes called "raising 19 088 009 to the power 2", or "19 088 009 squared".
The square of 19 088 009 is 364 352 087 584 081 because 19 088 009 × 19 088 009 = 19 088 0092 = 364 352 087 584 081.
As a consequence, 19 088 009 is the square root of 364 352 087 584 081.
19 088 009 is a number with 8 digits.
The multiples of 19 088 009 are all integers evenly divisible by 19 088 009, that is all numbers such that the remainder of the division by 19 088 009 is zero. There are infinitely many multiples of 19 088 009. The smallest multiples of 19 088 009 are: