315840855 has 24 divisors (see below), whose sum is σ = 555465456. Its totient is φ = 153134080.

The previous prime is 315840821. The next prime is 315840871. The reversal of 315840855 is 558048513.

It is not a de Polignac number, because 315840855 - 2¹⁹ = 315316567 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, 85194 + ... + 88823.

It is an arithmetic number, because the mean of its divisors is an integer number (23144394).

Almost surely, 2^315840855 is an apocalyptic number.

315840855 is a deficient number, since it is larger than the sum of its proper divisors (239624601).

315840855 is a wasteful number, since it uses less digits than its factorization.

315840855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174047 (or 174036 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 315840855 is about 17771.9119680467. The cubic root of 315840855 is about 681.0140974870.

The spelling of 315840855 in words is "three hundred fifteen million, eight hundred forty thousand, eight hundred fifty-five".