115388861 has 16 divisors (see below), whose sum is σ = 138682368. Its totient is φ = 93865200.

The previous prime is 115388857. The next prime is 115388869. The reversal of 115388861 is 168883511.

It is a cyclic number.

It is not a de Polignac number, because 115388861 - 2² = 115388857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115388869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18356 + ... + 23826.

It is an arithmetic number, because the mean of its divisors is an integer number (8667648).

Almost surely, 2^115388861 is an apocalyptic number.

It is an amenable number.

115388861 is a deficient number, since it is larger than the sum of its proper divisors (23293507).

115388861 is a wasteful number, since it uses less digits than its factorization.

115388861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632.

The product of its digits is 46080, while the sum is 41.

The square root of 115388861 is about 10741.9207314148. The cubic root of 115388861 is about 486.8419151074.

The spelling of 115388861 in words is "one hundred fifteen million, three hundred eighty-eight thousand, eight hundred sixty-one".