313230393 has 18 divisors (see below), whose sum is σ = 526313034. Its totient is φ = 178988544.

The previous prime is 313230367. The next prime is 313230397. The reversal of 313230393 is 393032313.

It can be written as a sum of positive squares in only one way, i.e., 306005049 + 7225344 = 17493^2 + 2688^2 .

It is not a de Polignac number, because 313230393 - 2⁶ = 313230329 is a prime.

It is a super-2 number, since 2×313230393² = 196226558197868898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313230397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 354696 + ... + 355577.

It is an arithmetic number, because the mean of its divisors is an integer number (29239613).

Almost surely, 2^313230393 is an apocalyptic number.

It is an amenable number.

313230393 is a deficient number, since it is larger than the sum of its proper divisors (213082641).

313230393 is a wasteful number, since it uses less digits than its factorization.

313230393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710293 (or 710283 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 27.

The square root of 313230393 is about 17698.3161063419. The cubic root of 313230393 is about 679.1326838873.

The spelling of 313230393 in words is "three hundred thirteen million, two hundred thirty thousand, three hundred ninety-three".