312557339 has 2 divisors, whose sum is σ = 312557340. Its totient is φ = 312557338.

The previous prime is 312557299. The next prime is 312557341. The reversal of 312557339 is 933755213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312557339 - 2⁸ = 312557083 is a prime.

Together with 312557341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312551339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156278669 + 156278670.

It is an arithmetic number, because the mean of its divisors is an integer number (156278670).

Almost surely, 2^312557339 is an apocalyptic number.

312557339 is a deficient number, since it is larger than the sum of its proper divisors (1).

312557339 is an equidigital number, since it uses as much as digits as its factorization.

312557339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85050, while the sum is 38.

The square root of 312557339 is about 17679.2912471060. The cubic root of 312557339 is about 678.6459061416.

The spelling of 312557339 in words is "three hundred twelve million, five hundred fifty-seven thousand, three hundred thirty-nine".