315984123 has 24 divisors (see below), whose sum is σ = 561751008. Its totient is φ = 166672512.

The previous prime is 315984091. The next prime is 315984157. The reversal of 315984123 is 321489513.

315984123 is a `hidden beast` number, since 3 + 1 + 598 + 41 + 23 = 666.

It is not a de Polignac number, because 315984123 - 2⁵ = 315984091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315984173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192090 + ... + 193727.

It is an arithmetic number, because the mean of its divisors is an integer number (23406292).

Almost surely, 2^315984123 is an apocalyptic number.

315984123 is a deficient number, since it is larger than the sum of its proper divisors (245766885).

315984123 is a wasteful number, since it uses less digits than its factorization.

315984123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385843 (or 385840 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 315984123 is about 17775.9422535066. The cubic root of 315984123 is about 681.1170531131.

It can be divided in two parts, 31598 and 4123, that added together give a square (35721 = 189²).

The spelling of 315984123 in words is "three hundred fifteen million, nine hundred eighty-four thousand, one hundred twenty-three".