318057812 has 12 divisors (see below), whose sum is σ = 557698260. Its totient is φ = 158715456.

The previous prime is 318057791. The next prime is 318057827. The reversal of 318057812 is 218750813.

It can be written as a sum of positive squares in 2 ways, for example, as 153859216 + 164198596 = 12404^2 + 12814^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76073 + ... + 80144.

It is an arithmetic number, because the mean of its divisors is an integer number (46474855).

Almost surely, 2^318057812 is an apocalyptic number.

It is an amenable number.

318057812 is a deficient number, since it is larger than the sum of its proper divisors (239640448).

318057812 is a wasteful number, since it uses less digits than its factorization.

318057812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156730 (or 156728 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 318057812 is about 17834.1753944498. The cubic root of 318057812 is about 682.6037801458.

The spelling of 318057812 in words is "three hundred eighteen million, fifty-seven thousand, eight hundred twelve".