315656285 has 12 divisors (see below), whose sum is σ = 440630748. Its totient is φ = 216449856.

The previous prime is 315656251. The next prime is 315656303. The reversal of 315656285 is 582656513.

It can be written as a sum of positive squares in 2 ways, for example, as 55995289 + 259660996 = 7483^2 + 16114^2 .

It is not a de Polignac number, because 315656285 - 2¹⁶ = 315590749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 643952 + ... + 644441.

It is an arithmetic number, because the mean of its divisors is an integer number (36719229).

Almost surely, 2^315656285 is an apocalyptic number.

315656285 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315656285 is a deficient number, since it is larger than the sum of its proper divisors (124974463).

315656285 is a wasteful number, since it uses less digits than its factorization.

315656285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288412 (or 1288405 counting only the distinct ones).

The product of its digits is 216000, while the sum is 41.

The square root of 315656285 is about 17766.7184645899. The cubic root of 315656285 is about 680.8814154075.

The spelling of 315656285 in words is "three hundred fifteen million, six hundred fifty-six thousand, two hundred eighty-five".