2312591257 has 2 divisors, whose sum is σ = 2312591258. Its totient is φ = 2312591256.

The previous prime is 2312591201. The next prime is 2312591269. The reversal of 2312591257 is 7521952132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2069886016 + 242705241 = 45496^2 + 15579^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312591257 - 2⁷ = 2312591129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2312591297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156295628 + 1156295629.

It is an arithmetic number, because the mean of its divisors is an integer number (1156295629).

Almost surely, 2^2312591257 is an apocalyptic number.

It is an amenable number.

2312591257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312591257 is an equidigital number, since it uses as much as digits as its factorization.

2312591257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 37.

The square root of 2312591257 is about 48089.4089899221. The cubic root of 2312591257 is about 1322.4105129183.

The spelling of 2312591257 in words is "two billion, three hundred twelve million, five hundred ninety-one thousand, two hundred fifty-seven".