315023402 has 16 divisors (see below), whose sum is σ = 491458560. Its totient is φ = 151311888.

The previous prime is 315023393. The next prime is 315023411. The reversal of 315023402 is 204320513.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (315023393) and next prime (315023411).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21098 + ... + 32789.

It is an arithmetic number, because the mean of its divisors is an integer number (30716160).

Almost surely, 2^315023402 is an apocalyptic number.

315023402 is a deficient number, since it is larger than the sum of its proper divisors (176435158).

315023402 is a wasteful number, since it uses less digits than its factorization.

315023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54005.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 315023402 is about 17748.8986137169. The cubic root of 315023402 is about 680.4260608462.

Adding to 315023402 its reverse (204320513), we get a palindrome (519343915).

The spelling of 315023402 in words is "three hundred fifteen million, twenty-three thousand, four hundred two".