115123154452529 has 2 divisors, whose sum is σ = 115123154452530. Its totient is φ = 115123154452528.

The previous prime is 115123154452513. The next prime is 115123154452549. The reversal of 115123154452529 is 925254451321511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86110011084304 + 29013143368225 = 9279548^2 + 5386385^2 .

It is a cyclic number.

It is not a de Polignac number, because 115123154452529 - 2⁴ = 115123154452513 is a prime.

It is a super-2 number, since 2×115123154452529² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115123154452549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57561577226264 + 57561577226265.

It is an arithmetic number, because the mean of its divisors is an integer number (57561577226265).

Almost surely, 2^{115123154452529} is an apocalyptic number.

It is an amenable number.

115123154452529 is a deficient number, since it is larger than the sum of its proper divisors (1).

115123154452529 is an equidigital number, since it uses as much as digits as its factorization.

115123154452529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160000, while the sum is 50.

The spelling of 115123154452529 in words is "one hundred fifteen trillion, one hundred twenty-three billion, one hundred fifty-four million, four hundred fifty-two thousand, five hundred twenty-nine".