115432451521 has 2 divisors, whose sum is σ = 115432451522. Its totient is φ = 115432451520.

The previous prime is 115432451513. The next prime is 115432451569. The reversal of 115432451521 is 125154234511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63053721025 + 52378730496 = 251105^2 + 228864^2 .

It is a cyclic number.

It is not a de Polignac number, because 115432451521 - 2³ = 115432451513 is a prime.

It is not a weakly prime, because it can be changed into another prime (115432451581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57716225760 + 57716225761.

It is an arithmetic number, because the mean of its divisors is an integer number (57716225761).

Almost surely, 2^115432451521 is an apocalyptic number.

It is an amenable number.

115432451521 is a deficient number, since it is larger than the sum of its proper divisors (1).

115432451521 is an equidigital number, since it uses as much as digits as its factorization.

115432451521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 34.

The spelling of 115432451521 in words is "one hundred fifteen billion, four hundred thirty-two million, four hundred fifty-one thousand, five hundred twenty-one".