312946057 has 2 divisors, whose sum is σ = 312946058. Its totient is φ = 312946056.

The previous prime is 312946021. The next prime is 312946099. The reversal of 312946057 is 750649213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302029641 + 10916416 = 17379^2 + 3304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312946057 is a prime.

It is not a weakly prime, because it can be changed into another prime (312946157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156473028 + 156473029.

It is an arithmetic number, because the mean of its divisors is an integer number (156473029).

Almost surely, 2^312946057 is an apocalyptic number.

It is an amenable number.

312946057 is a deficient number, since it is larger than the sum of its proper divisors (1).

312946057 is an equidigital number, since it uses as much as digits as its factorization.

312946057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 312946057 is about 17690.2814279479. The cubic root of 312946057 is about 678.9271266423.

The spelling of 312946057 in words is "three hundred twelve million, nine hundred forty-six thousand, fifty-seven".