115388121 has 16 divisors (see below), whose sum is σ = 162176000. Its totient is φ = 72774288.

The previous prime is 115388087. The next prime is 115388131. The reversal of 115388121 is 121883511.

It is not a de Polignac number, because 115388121 - 2⁶ = 115388057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115388131) 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, 79020 + ... + 80466.

It is an arithmetic number, because the mean of its divisors is an integer number (10136000).

Almost surely, 2^115388121 is an apocalyptic number.

It is an amenable number.

115388121 is a deficient number, since it is larger than the sum of its proper divisors (46787879).

115388121 is a wasteful number, since it uses less digits than its factorization.

115388121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868.

The product of its digits is 1920, while the sum is 30.

The square root of 115388121 is about 10741.8862868679. The cubic root of 115388121 is about 486.8408743837.

The spelling of 115388121 in words is "one hundred fifteen million, three hundred eighty-eight thousand, one hundred twenty-one".