115239043921 has 8 divisors (see below), whose sum is σ = 115541658144. Its totient is φ = 114936778080.

The previous prime is 115239043873. The next prime is 115239043939. The reversal of 115239043921 is 129340932511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115239043921 - 2²⁵ = 115205489489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115239043951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582061 + ... + 754501.

It is an arithmetic number, because the mean of its divisors is an integer number (14442707268).

Almost surely, 2^115239043921 is an apocalyptic number.

It is an amenable number.

115239043921 is a deficient number, since it is larger than the sum of its proper divisors (302614223).

115239043921 is a wasteful number, since it uses less digits than its factorization.

115239043921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174191.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 115239043921 in words is "one hundred fifteen billion, two hundred thirty-nine million, forty-three thousand, nine hundred twenty-one".