315508087 has 2 divisors, whose sum is σ = 315508088. Its totient is φ = 315508086.

The previous prime is 315508057. The next prime is 315508103. The reversal of 315508087 is 780805513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315508087 - 2¹⁵ = 315475319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315508057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157754043 + 157754044.

It is an arithmetic number, because the mean of its divisors is an integer number (157754044).

Almost surely, 2^315508087 is an apocalyptic number.

315508087 is a deficient number, since it is larger than the sum of its proper divisors (1).

315508087 is an equidigital number, since it uses as much as digits as its factorization.

315508087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 315508087 is about 17762.5473116893. The cubic root of 315508087 is about 680.7748426739.

The spelling of 315508087 in words is "three hundred fifteen million, five hundred eight thousand, eighty-seven".