115427252105521 has 2 divisors, whose sum is σ = 115427252105522. Its totient is φ = 115427252105520.

The previous prime is 115427252105393. The next prime is 115427252105531. The reversal of 115427252105521 is 125501252724511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63930195044496 + 51497057061025 = 7995636^2 + 7176145^2 .

It is a cyclic number.

It is not a de Polignac number, because 115427252105521 - 2⁷ = 115427252105393 is a prime.

It is not a weakly prime, because it can be changed into another prime (115427252105531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57713626052760 + 57713626052761.

It is an arithmetic number, because the mean of its divisors is an integer number (57713626052761).

Almost surely, 2^{115427252105521} is an apocalyptic number.

It is an amenable number.

115427252105521 is a deficient number, since it is larger than the sum of its proper divisors (1).

115427252105521 is an equidigital number, since it uses as much as digits as its factorization.

115427252105521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280000, while the sum is 43.

The spelling of 115427252105521 in words is "one hundred fifteen trillion, four hundred twenty-seven billion, two hundred fifty-two million, one hundred five thousand, five hundred twenty-one".