313126812 has 18 divisors (see below), whose sum is σ = 791515088. Its totient is φ = 104375592.

The previous prime is 313126727. The next prime is 313126813. The reversal of 313126812 is 218621313.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313126813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4348948 + ... + 4349019.

Almost surely, 2^313126812 is an apocalyptic number.

It is an amenable number.

313126812 is an abundant number, since it is smaller than the sum of its proper divisors (478388276).

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

313126812 is a wasteful number, since it uses less digits than its factorization.

313126812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697977 (or 8697972 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 313126812 is about 17695.3895690375. The cubic root of 313126812 is about 679.0578156757.

The spelling of 313126812 in words is "three hundred thirteen million, one hundred twenty-six thousand, eight hundred twelve".