318093812 has 6 divisors (see below), whose sum is σ = 556664178. Its totient is φ = 159046904.

The previous prime is 318093803. The next prime is 318093827. The reversal of 318093812 is 218390813.

It can be written as a sum of positive squares in only one way, i.e., 165225316 + 152868496 = 12854^2 + 12364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39761723 + ... + 39761730.

It is an arithmetic number, because the mean of its divisors is an integer number (92777363).

Almost surely, 2^318093812 is an apocalyptic number.

It is an amenable number.

318093812 is a deficient number, since it is larger than the sum of its proper divisors (238570366).

318093812 is a wasteful number, since it uses less digits than its factorization.

318093812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79523457 (or 79523455 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 318093812 is about 17835.1846640286. The cubic root of 318093812 is about 682.6295331254.

The spelling of 318093812 in words is "three hundred eighteen million, ninety-three thousand, eight hundred twelve".