318321316 has 12 divisors (see below), whose sum is σ = 563322060. Its totient is φ = 157372160.

The previous prime is 318321301. The next prime is 318321331. The reversal of 318321316 is 613123813.

It is an interprime number because it is at equal distance from previous prime (318321301) and next prime (318321331).

It can be written as a sum of positive squares in 2 ways, for example, as 211818916 + 106502400 = 14554^2 + 10320^2 .

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, 446725 + ... + 447436.

It is an arithmetic number, because the mean of its divisors is an integer number (46943505).

Almost surely, 2^318321316 is an apocalyptic number.

It is an amenable number.

318321316 is a deficient number, since it is larger than the sum of its proper divisors (245000744).

318321316 is a wasteful number, since it uses less digits than its factorization.

318321316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894254 (or 894252 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 318321316 is about 17841.5614787496. The cubic root of 318321316 is about 682.7922355881.

The spelling of 318321316 in words is "three hundred eighteen million, three hundred twenty-one thousand, three hundred sixteen".