312313439 has 2 divisors, whose sum is σ = 312313440. Its totient is φ = 312313438.

The previous prime is 312313427. The next prime is 312313453. The reversal of 312313439 is 934313213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312313439 - 2²⁸ = 43877983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312312439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156156719 + 156156720.

It is an arithmetic number, because the mean of its divisors is an integer number (156156720).

Almost surely, 2^312313439 is an apocalyptic number.

312313439 is a deficient number, since it is larger than the sum of its proper divisors (1).

312313439 is an equidigital number, since it uses as much as digits as its factorization.

312313439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 29.

The square root of 312313439 is about 17672.3919999529. The cubic root of 312313439 is about 678.4693360762.

The spelling of 312313439 in words is "three hundred twelve million, three hundred thirteen thousand, four hundred thirty-nine".