318253136 has 20 divisors (see below), whose sum is σ = 625064532. Its totient is φ = 156946176.

The previous prime is 318253109. The next prime is 318253147. The reversal of 318253136 is 631352813.

It can be written as a sum of positive squares in 2 ways, for example, as 235806736 + 82446400 = 15356^2 + 9080^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135071 + ... + 137406.

Almost surely, 2^318253136 is an apocalyptic number.

It is an amenable number.

318253136 is a deficient number, since it is larger than the sum of its proper divisors (306811396).

318253136 is a wasteful number, since it uses less digits than its factorization.

318253136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272558 (or 272552 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 318253136 is about 17839.6506692256. The cubic root of 318253136 is about 682.7434839061.

The spelling of 318253136 in words is "three hundred eighteen million, two hundred fifty-three thousand, one hundred thirty-six".