313481812 has 36 divisors (see below), whose sum is σ = 665915040. Its totient is φ = 128506224.

The previous prime is 313481801. The next prime is 313481813. The reversal of 313481812 is 218184313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313481813) 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, 30262 + ... + 39277.

It is an arithmetic number, because the mean of its divisors is an integer number (18497640).

Almost surely, 2^313481812 is an apocalyptic number.

It is an amenable number.

313481812 is an abundant number, since it is smaller than the sum of its proper divisors (352433228).

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

313481812 is a wasteful number, since it uses less digits than its factorization.

313481812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69580 (or 69571 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 313481812 is about 17705.4175889754. The cubic root of 313481812 is about 679.3143405850.

It can be divided in two parts, 31 and 3481812, that added together give a palindrome (3481843).

The spelling of 313481812 in words is "three hundred thirteen million, four hundred eighty-one thousand, eight hundred twelve".