313539994 has 4 divisors (see below), whose sum is σ = 470309994. Its totient is φ = 156769996.

The previous prime is 313539973. The next prime is 313540039. The reversal of 313539994 is 499935313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 290259369 + 23280625 = 17037^2 + 4825^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78384997 + ... + 78385000.

Almost surely, 2^313539994 is an apocalyptic number.

313539994 is a deficient number, since it is larger than the sum of its proper divisors (156770000).

313539994 is a wasteful number, since it uses less digits than its factorization.

313539994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156769999.

The product of its digits is 393660, while the sum is 46.

The square root of 313539994 is about 17707.0605691628. The cubic root of 313539994 is about 679.3563647371.

The spelling of 313539994 in words is "three hundred thirteen million, five hundred thirty-nine thousand, nine hundred ninety-four".