312742057 has 2 divisors, whose sum is σ = 312742058. Its totient is φ = 312742056.

The previous prime is 312742049. The next prime is 312742127. The reversal of 312742057 is 750247213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268599321 + 44142736 = 16389^2 + 6644^2 .

It is a cyclic number.

It is not a de Polignac number, because 312742057 - 2³ = 312742049 is a prime.

It is not a weakly prime, because it can be changed into another prime (312242057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156371028 + 156371029.

It is an arithmetic number, because the mean of its divisors is an integer number (156371029).

Almost surely, 2^312742057 is an apocalyptic number.

It is an amenable number.

312742057 is a deficient number, since it is larger than the sum of its proper divisors (1).

312742057 is an equidigital number, since it uses as much as digits as its factorization.

312742057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 312742057 is about 17684.5146102459. The cubic root of 312742057 is about 678.7795706056.

The spelling of 312742057 in words is "three hundred twelve million, seven hundred forty-two thousand, fifty-seven".