315668039 has 2 divisors, whose sum is σ = 315668040. Its totient is φ = 315668038.

The previous prime is 315668029. The next prime is 315668047. The reversal of 315668039 is 930866513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315668039 - 2²⁸ = 47232583 is a prime.

It is a super-2 number, since 2×315668039² = 199292621692211042, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 315667987 and 315668005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315668029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157834019 + 157834020.

It is an arithmetic number, because the mean of its divisors is an integer number (157834020).

Almost surely, 2^315668039 is an apocalyptic number.

315668039 is a deficient number, since it is larger than the sum of its proper divisors (1).

315668039 is an equidigital number, since it uses as much as digits as its factorization.

315668039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 315668039 is about 17767.0492485387. The cubic root of 315668039 is about 680.8898665628.

The spelling of 315668039 in words is "three hundred fifteen million, six hundred sixty-eight thousand, thirty-nine".