315920885 has 24 divisors (see below), whose sum is σ = 464217120. Its totient is φ = 205226784.

The previous prime is 315920873. The next prime is 315920909. The reversal of 315920885 is 588029513.

It is not a de Polignac number, because 315920885 - 2⁶ = 315920821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29279 + ... + 38588.

It is an arithmetic number, because the mean of its divisors is an integer number (19342380).

Almost surely, 2^315920885 is an apocalyptic number.

315920885 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315920885 is a deficient number, since it is larger than the sum of its proper divisors (148296235).

315920885 is a wasteful number, since it uses less digits than its factorization.

315920885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67905 (or 67898 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 315920885 is about 17774.1634120990. The cubic root of 315920885 is about 681.0716126930.

The spelling of 315920885 in words is "three hundred fifteen million, nine hundred twenty thousand, eight hundred eighty-five".