313857403 has 6 divisors (see below), whose sum is σ = 319270724. Its totient is φ = 308534364.

The previous prime is 313857389. The next prime is 313857443. The reversal of 313857403 is 304758313.

It is not a de Polignac number, because 313857403 - 2⁹ = 313856891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313857443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41601 + ... + 48562.

Almost surely, 2^313857403 is an apocalyptic number.

313857403 is a deficient number, since it is larger than the sum of its proper divisors (5413321).

313857403 is an frugal number, since it uses more digits than its factorization.

313857403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90281 (or 90222 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 313857403 is about 17716.0210826246. The cubic root of 313857403 is about 679.5855339069.

The spelling of 313857403 in words is "three hundred thirteen million, eight hundred fifty-seven thousand, four hundred three".