315225 has 24 divisors (see below), whose sum is σ = 580320. Its totient is φ = 167760.

The previous prime is 315223. The next prime is 315247. The reversal of 315225 is 522513.

It is a happy number.

It is not a de Polignac number, because 315225 - 2¹ = 315223 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 315198 and 315207.

It is not an unprimeable number, because it can be changed into a prime (315223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442 + ... + 908.

It is an arithmetic number, because the mean of its divisors is an integer number (24180).

2³¹⁵²²⁵ is an apocalyptic number.

It is an amenable number.

315225 is a deficient number, since it is larger than the sum of its proper divisors (265095).

315225 is a wasteful number, since it uses less digits than its factorization.

315225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 475 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 315225 is about 561.4490181664. The cubic root of 315225 is about 68.0571175232.

Adding to 315225 its reverse (522513), we get a palindrome (837738).

The spelling of 315225 in words is "three hundred fifteen thousand, two hundred twenty-five".