313012008 has 48 divisors (see below), whose sum is σ = 870660180. Its totient is φ = 101516544.

The previous prime is 313012001. The next prime is 313012019. The reversal of 313012008 is 800210313.

It can be written as a sum of positive squares in 2 ways, for example, as 308423844 + 4588164 = 17562^2 + 2142^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (313012001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56085 + ... + 61412.

Almost surely, 2^313012008 is an apocalyptic number.

It is an amenable number.

313012008 is an abundant number, since it is smaller than the sum of its proper divisors (557648172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313012008 is a wasteful number, since it uses less digits than its factorization.

313012008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117546 (or 117539 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 313012008 is about 17692.1453758440. The cubic root of 313012008 is about 678.9748162008.

The spelling of 313012008 in words is "three hundred thirteen million, twelve thousand, eight".