126529512317797 has 2 divisors, whose sum is σ = 126529512317798. Its totient is φ = 126529512317796.

The previous prime is 126529512317731. The next prime is 126529512317843. The reversal of 126529512317797 is 797713215925621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83730295981476 + 42799216336321 = 9150426^2 + 6542111^2 .

It is an emirp because it is prime and its reverse (797713215925621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126529512317797 is a prime.

It is a super-2 number, since 2×126529512317797² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126529512317717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63264756158898 + 63264756158899.

It is an arithmetic number, because the mean of its divisors is an integer number (63264756158899).

Almost surely, 2^{126529512317797} is an apocalyptic number.

It is an amenable number.

126529512317797 is a deficient number, since it is larger than the sum of its proper divisors (1).

126529512317797 is an equidigital number, since it uses as much as digits as its factorization.

126529512317797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100018800, while the sum is 67.

The spelling of 126529512317797 in words is "one hundred twenty-six trillion, five hundred twenty-nine billion, five hundred twelve million, three hundred seventeen thousand, seven hundred ninety-seven".