313447131 has 16 divisors (see below), whose sum is σ = 465379200. Its totient is φ = 208508904.

The previous prime is 313447111. The next prime is 313447133. The reversal of 313447131 is 131744313.

It is not a de Polignac number, because 313447131 - 2¹⁸ = 313184987 is a prime.

It is a super-2 number, since 2×313447131² = 196498207864262322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 313447095 and 313447104.

It is not an unprimeable number, because it can be changed into a prime (313447133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180 + ... + 25038.

It is an arithmetic number, because the mean of its divisors is an integer number (29086200).

Almost surely, 2^313447131 is an apocalyptic number.

313447131 is a deficient number, since it is larger than the sum of its proper divisors (151932069).

313447131 is a wasteful number, since it uses less digits than its factorization.

313447131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25335 (or 25329 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 313447131 is about 17704.4381723906. The cubic root of 313447131 is about 679.2892884463.

The spelling of 313447131 in words is "three hundred thirteen million, four hundred forty-seven thousand, one hundred thirty-one".