312461339 has 2 divisors, whose sum is σ = 312461340. Its totient is φ = 312461338.

The previous prime is 312461333. The next prime is 312461363. The reversal of 312461339 is 933164213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312461339 is a prime.

It is equal to p_16890323 and since 312461339 and 16890323 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (312461333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156230669 + 156230670.

It is an arithmetic number, because the mean of its divisors is an integer number (156230670).

Almost surely, 2^312461339 is an apocalyptic number.

312461339 is a deficient number, since it is larger than the sum of its proper divisors (1).

312461339 is an equidigital number, since it uses as much as digits as its factorization.

312461339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 312461339 is about 17676.5759976303. The cubic root of 312461339 is about 678.5764184347.

The spelling of 312461339 in words is "three hundred twelve million, four hundred sixty-one thousand, three hundred thirty-nine".