115918129 has 8 divisors (see below), whose sum is σ = 117453888. Its totient is φ = 114390960.

The previous prime is 115918123. The next prime is 115918141. The reversal of 115918129 is 921819511.

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 115918129 - 2⁷ = 115918001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115918123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27684 + ... + 31594.

It is an arithmetic number, because the mean of its divisors is an integer number (14681736).

Almost surely, 2^115918129 is an apocalyptic number.

It is an amenable number.

115918129 is a deficient number, since it is larger than the sum of its proper divisors (1535759).

115918129 is a wasteful number, since it uses less digits than its factorization.

115918129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295.

The product of its digits is 6480, while the sum is 37.

The square root of 115918129 is about 10766.5281776439. The cubic root of 115918129 is about 487.5851320972.

The spelling of 115918129 in words is "one hundred fifteen million, nine hundred eighteen thousand, one hundred twenty-nine".