1371617297513 has 2 divisors, whose sum is σ = 1371617297514. Its totient is φ = 1371617297512.

The previous prime is 1371617297489. The next prime is 1371617297543. The reversal of 1371617297513 is 3157927161731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1322861124649 + 48756172864 = 1150157^2 + 220808^2 .

It is an emirp because it is prime and its reverse (3157927161731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1371617297513 - 2²⁶ = 1371550188649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1371617297543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685808648756 + 685808648757.

It is an arithmetic number, because the mean of its divisors is an integer number (685808648757).

Almost surely, 2^{1371617297513} is an apocalyptic number.

It is an amenable number.

1371617297513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371617297513 is an equidigital number, since it uses as much as digits as its factorization.

1371617297513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1666980, while the sum is 53.

The spelling of 1371617297513 in words is "one trillion, three hundred seventy-one billion, six hundred seventeen million, two hundred ninety-seven thousand, five hundred thirteen".