313250013 has 6 divisors (see below), whose sum is σ = 452472254. Its totient is φ = 208833336.

The previous prime is 313249987. The next prime is 313250023. The reversal of 313250013 is 310052313.

It can be written as a sum of positive squares in only one way, i.e., 172186884 + 141063129 = 13122^2 + 11877^2 .

It is not a de Polignac number, because 313250013 - 2¹⁰ = 313248989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313250023) 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, 17402770 + ... + 17402787.

Almost surely, 2^313250013 is an apocalyptic number.

It is an amenable number.

313250013 is a deficient number, since it is larger than the sum of its proper divisors (139222241).

313250013 is a wasteful number, since it uses less digits than its factorization.

313250013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34805563 (or 34805560 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 313250013 is about 17698.8703876829. The cubic root of 313250013 is about 679.1468633383.

The spelling of 313250013 in words is "three hundred thirteen million, two hundred fifty thousand, thirteen".