315915 has 8 divisors (see below), whose sum is σ = 505488. Its totient is φ = 168480.

The previous prime is 315907. The next prime is 315937. The reversal of 315915 is 519513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 315915 - 2³ = 315907 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315915.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10516 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (63186).

2³¹⁵⁹¹⁵ is an apocalyptic number.

315915 is a deficient number, since it is larger than the sum of its proper divisors (189573).

315915 is a wasteful number, since it uses less digits than its factorization.

315915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21069.

The product of its digits is 675, while the sum is 24.

The square root of 315915 is about 562.0631637103. The cubic root of 315915 is about 68.1067383648.

The spelling of 315915 in words is "three hundred fifteen thousand, nine hundred fifteen".