318918971 has 32 divisors (see below), whose sum is σ = 393216000. Its totient is φ = 252618912.

The previous prime is 318918961. The next prime is 318918973. The reversal of 318918971 is 179819813.

It is not a de Polignac number, because 318918971 - 2¹⁴ = 318902587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318918973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1334270 + ... + 1334508.

It is an arithmetic number, because the mean of its divisors is an integer number (12288000).

Almost surely, 2^318918971 is an apocalyptic number.

318918971 is a deficient number, since it is larger than the sum of its proper divisors (74297029).

318918971 is a wasteful number, since it uses less digits than its factorization.

318918971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471.

The product of its digits is 108864, while the sum is 47.

The square root of 318918971 is about 17858.3025789127. The cubic root of 318918971 is about 683.2192873853.

The spelling of 318918971 in words is "three hundred eighteen million, nine hundred eighteen thousand, nine hundred seventy-one".