315956 has 6 divisors (see below), whose sum is σ = 552930. Its totient is φ = 157976.

The previous prime is 315949. The next prime is 315961. The reversal of 315956 is 659513.

It can be written as a sum of positive squares in only one way, i.e., 302500 + 13456 = 550^2 + 116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39491 + ... + 39498.

It is an arithmetic number, because the mean of its divisors is an integer number (92155).

2³¹⁵⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

315956 is a deficient number, since it is larger than the sum of its proper divisors (236974).

315956 is a wasteful number, since it uses less digits than its factorization.

315956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78993 (or 78991 counting only the distinct ones).

The product of its digits is 4050, while the sum is 29.

The square root of 315956 is about 562.0996352961. The cubic root of 315956 is about 68.1096845744.

The spelling of 315956 in words is "three hundred fifteen thousand, nine hundred fifty-six".