312512357 has 2 divisors, whose sum is σ = 312512358. Its totient is φ = 312512356.

The previous prime is 312512303. The next prime is 312512359. The reversal of 312512357 is 753215213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299774596 + 12737761 = 17314^2 + 3569^2 .

It is a cyclic number.

It is not a de Polignac number, because 312512357 - 2¹⁶ = 312446821 is a prime.

Together with 312512359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312512359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156256178 + 156256179.

It is an arithmetic number, because the mean of its divisors is an integer number (156256179).

Almost surely, 2^312512357 is an apocalyptic number.

It is an amenable number.

312512357 is a deficient number, since it is larger than the sum of its proper divisors (1).

312512357 is an equidigital number, since it uses as much as digits as its factorization.

312512357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 29.

The square root of 312512357 is about 17678.0190349485. The cubic root of 312512357 is about 678.6133485798.

The spelling of 312512357 in words is "three hundred twelve million, five hundred twelve thousand, three hundred fifty-seven".