317513812 has 24 divisors (see below), whose sum is σ = 692758080. Its totient is φ = 123706560.

The previous prime is 317513783. The next prime is 317513813. The reversal of 317513812 is 218315713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317513813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515137 + ... + 515752.

It is an arithmetic number, because the mean of its divisors is an integer number (28864920).

Almost surely, 2^317513812 is an apocalyptic number.

It is an amenable number.

317513812 is an abundant number, since it is smaller than the sum of its proper divisors (375244268).

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

317513812 is a wasteful number, since it uses less digits than its factorization.

317513812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030911 (or 1030909 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 317513812 is about 17818.9172510565. The cubic root of 317513812 is about 682.2143872402.

The spelling of 317513812 in words is "three hundred seventeen million, five hundred thirteen thousand, eight hundred twelve".