315256402 has 16 divisors (see below), whose sum is σ = 486789912. Its totient is φ = 153054720.

The previous prime is 315256393. The next prime is 315256427. The reversal of 315256402 is 204652513.

315256402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 314317441 + 938961 = 17729^2 + 969^2 .

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, 5049 + ... + 25612.

Almost surely, 2^315256402 is an apocalyptic number.

315256402 is a deficient number, since it is larger than the sum of its proper divisors (171533510).

315256402 is a wasteful number, since it uses less digits than its factorization.

315256402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30813.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 315256402 is about 17755.4611880401. The cubic root of 315256402 is about 680.5937734675.

The spelling of 315256402 in words is "three hundred fifteen million, two hundred fifty-six thousand, four hundred two".