315225393 has 16 divisors (see below), whose sum is σ = 480610176. Its totient is φ = 180028800.

The previous prime is 315225367. The next prime is 315225403. The reversal of 315225393 is 393522513.

It is a happy number.

It is not a de Polignac number, because 315225393 - 2⁸ = 315225137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315225893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52443 + ... + 58143.

It is an arithmetic number, because the mean of its divisors is an integer number (30038136).

Almost surely, 2^315225393 is an apocalyptic number.

It is an amenable number.

315225393 is a deficient number, since it is larger than the sum of its proper divisors (165384783).

315225393 is a wasteful number, since it uses less digits than its factorization.

315225393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344.

The product of its digits is 24300, while the sum is 33.

The square root of 315225393 is about 17754.5879422757. The cubic root of 315225393 is about 680.5714580610.

The spelling of 315225393 in words is "three hundred fifteen million, two hundred twenty-five thousand, three hundred ninety-three".