13012157497 has 2 divisors, whose sum is σ = 13012157498. Its totient is φ = 13012157496.

The previous prime is 13012157453. The next prime is 13012157507. The reversal of 13012157497 is 79475121031.

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., 12928599616 + 83557881 = 113704^2 + 9141^2 .

It is a cyclic number.

It is not a de Polignac number, because 13012157497 - 2²⁷ = 12877939769 is a prime.

It is not a weakly prime, because it can be changed into another prime (13012157437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6506078748 + 6506078749.

It is an arithmetic number, because the mean of its divisors is an integer number (6506078749).

Almost surely, 2^13012157497 is an apocalyptic number.

It is an amenable number.

13012157497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13012157497 is an equidigital number, since it uses as much as digits as its factorization.

13012157497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 13012157497 in words is "thirteen billion, twelve million, one hundred fifty-seven thousand, four hundred ninety-seven".