315825 has 12 divisors (see below), whose sum is σ = 522288. Its totient is φ = 168400.

The previous prime is 315811. The next prime is 315829. The reversal of 315825 is 528513.

It is not a de Polignac number, because 315825 - 2⁷ = 315697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315795 and 315804.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315825.

It is not an unprimeable number, because it can be changed into a prime (315829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2031 + ... + 2180.

It is an arithmetic number, because the mean of its divisors is an integer number (43524).

2³¹⁵⁸²⁵ is an apocalyptic number.

It is an amenable number.

315825 is a deficient number, since it is larger than the sum of its proper divisors (206463).

315825 is a wasteful number, since it uses less digits than its factorization.

315825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224 (or 4219 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 315825 is about 561.9830958312. The cubic root of 315825 is about 68.1002701812.

The spelling of 315825 in words is "three hundred fifteen thousand, eight hundred twenty-five".