315975 has 24 divisors (see below), whose sum is σ = 571392. Its totient is φ = 152800.

The previous prime is 315967. The next prime is 315977. The reversal of 315975 is 579513.

It is a happy number.

It is not a de Polignac number, because 315975 - 2³ = 315967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 634 + ... + 1016.

It is an arithmetic number, because the mean of its divisors is an integer number (23808).

2³¹⁵⁹⁷⁵ is an apocalyptic number.

315975 is a deficient number, since it is larger than the sum of its proper divisors (255417).

315975 is a wasteful number, since it uses less digits than its factorization.

315975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 402 counting only the distinct ones).

The product of its digits is 4725, while the sum is 30.

The square root of 315975 is about 562.1165359603. The cubic root of 315975 is about 68.1110498047. Note that the first 3 decimals are identical.

It can be divided in two parts, 31 and 5975, that added together give a palindrome (6006).

The spelling of 315975 in words is "three hundred fifteen thousand, nine hundred seventy-five".