315425 has 24 divisors (see below), whose sum is σ = 452352. Its totient is φ = 216000.

The previous prime is 315421. The next prime is 315437. The reversal of 315425 is 524513.

It is not a de Polignac number, because 315425 - 2² = 315421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315397 and 315406.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315425.

It is not an unprimeable number, because it can be changed into a prime (315421) 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, 8507 + ... + 8543.

It is an arithmetic number, because the mean of its divisors is an integer number (18848).

2³¹⁵⁴²⁵ is an apocalyptic number.

It is an amenable number.

315425 is a deficient number, since it is larger than the sum of its proper divisors (136927).

315425 is a wasteful number, since it uses less digits than its factorization.

315425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 84 counting only the distinct ones).

The product of its digits is 600, while the sum is 20.

The square root of 315425 is about 561.6271004857. The cubic root of 315425 is about 68.0715078220.

Adding to 315425 its reverse (524513), we get a palindrome (839938).

The spelling of 315425 in words is "three hundred fifteen thousand, four hundred twenty-five".