315907 has 2 divisors, whose sum is σ = 315908. Its totient is φ = 315906.

The previous prime is 315899. The next prime is 315937. The reversal of 315907 is 709513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315907 - 2³ = 315899 is a prime.

It is equal to p₂₇₂₆₈ and since 315907 and 27268 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (315937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157953 + 157954.

It is an arithmetic number, because the mean of its divisors is an integer number (157954).

2³¹⁵⁹⁰⁷ is an apocalyptic number.

315907 is a deficient number, since it is larger than the sum of its proper divisors (1).

315907 is an equidigital number, since it uses as much as digits as its factorization.

315907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 315907 is about 562.0560470273. The cubic root of 315907 is about 68.1061634649.

The spelling of 315907 in words is "three hundred fifteen thousand, nine hundred seven".