2312145457 has 2 divisors, whose sum is σ = 2312145458. Its totient is φ = 2312145456.

The previous prime is 2312145439. The next prime is 2312145467. The reversal of 2312145457 is 7545412132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1301477776 + 1010667681 = 36076^2 + 31791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2312145457 is a prime.

It is a super-2 number, since 2×2312145457² = 10692033228651477698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2312145467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156072728 + 1156072729.

It is an arithmetic number, because the mean of its divisors is an integer number (1156072729).

Almost surely, 2^2312145457 is an apocalyptic number.

It is an amenable number.

2312145457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312145457 is an equidigital number, since it uses as much as digits as its factorization.

2312145457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 34.

The square root of 2312145457 is about 48084.7736502939. The cubic root of 2312145457 is about 1322.3255334260.

Adding to 2312145457 its reverse (7545412132), we get a palindrome (9857557589).

The spelling of 2312145457 in words is "two billion, three hundred twelve million, one hundred forty-five thousand, four hundred fifty-seven".