318103812 has 36 divisors (see below), whose sum is σ = 865950540. Its totient is φ = 97877952.

The previous prime is 318103801. The next prime is 318103829. The reversal of 318103812 is 218301813.

It can be written as a sum of positive squares in 2 ways, for example, as 152621316 + 165482496 = 12354^2 + 12864^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 339387 + ... + 340322.

Almost surely, 2^318103812 is an apocalyptic number.

It is an amenable number.

318103812 is an abundant number, since it is smaller than the sum of its proper divisors (547846728).

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

318103812 is a wasteful number, since it uses less digits than its factorization.

318103812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679732 (or 679727 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 318103812 is about 17835.4650065537. The cubic root of 318103812 is about 682.6366863860.

The spelling of 318103812 in words is "three hundred eighteen million, one hundred three thousand, eight hundred twelve".