315107428 has 6 divisors (see below), whose sum is σ = 551438006. Its totient is φ = 157553712.

The previous prime is 315107423. The next prime is 315107431. The reversal of 315107428 is 824701513.

It can be written as a sum of positive squares in only one way, i.e., 296115264 + 18992164 = 17208^2 + 4358^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 315107428.

It is not an unprimeable number, because it can be changed into a prime (315107423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39388425 + ... + 39388432.

Almost surely, 2^315107428 is an apocalyptic number.

It is an amenable number.

315107428 is a deficient number, since it is larger than the sum of its proper divisors (236330578).

315107428 is a wasteful number, since it uses less digits than its factorization.

315107428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78776861 (or 78776859 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 315107428 is about 17751.2655323501. The cubic root of 315107428 is about 680.4865520111.

The spelling of 315107428 in words is "three hundred fifteen million, one hundred seven thousand, four hundred twenty-eight".