313332731 has 2 divisors, whose sum is σ = 313332732. Its totient is φ = 313332730.

The previous prime is 313332713. The next prime is 313332739. The reversal of 313332731 is 137233313.

It is a happy number.

Together with previous prime (313332713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313332731 is a prime.

It is a super-2 number, since 2×313332731² = 196354800631836722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313332731.

It is not a weakly prime, because it can be changed into another prime (313332739) 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 as a sum of consecutive naturals, namely, 156666365 + 156666366.

It is an arithmetic number, because the mean of its divisors is an integer number (156666366).

Almost surely, 2^313332731 is an apocalyptic number.

313332731 is a deficient number, since it is larger than the sum of its proper divisors (1).

313332731 is an equidigital number, since it uses as much as digits as its factorization.

313332731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 26.

The square root of 313332731 is about 17701.2070492382. The cubic root of 313332731 is about 679.2066374525.

The spelling of 313332731 in words is "three hundred thirteen million, three hundred thirty-two thousand, seven hundred thirty-one".