312314239 has 2 divisors, whose sum is σ = 312314240. Its totient is φ = 312314238.

The previous prime is 312314207. The next prime is 312314287. The reversal of 312314239 is 932413213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312314239 - 2⁵ = 312314207 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312311239) 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, 156157119 + 156157120.

It is an arithmetic number, because the mean of its divisors is an integer number (156157120).

Almost surely, 2^312314239 is an apocalyptic number.

312314239 is a deficient number, since it is larger than the sum of its proper divisors (1).

312314239 is an equidigital number, since it uses as much as digits as its factorization.

312314239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 312314239 is about 17672.4146341127. The cubic root of 312314239 is about 678.4699153820.

The spelling of 312314239 in words is "three hundred twelve million, three hundred fourteen thousand, two hundred thirty-nine".