115129112 has 32 divisors (see below), whose sum is σ = 247082400. Its totient is φ = 49265664.

The previous prime is 115129109. The next prime is 115129123. The reversal of 115129112 is 211921511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50918 + ... + 53130.

It is an arithmetic number, because the mean of its divisors is an integer number (7721325).

Almost surely, 2^115129112 is an apocalyptic number.

It is an amenable number.

115129112 is an abundant number, since it is smaller than the sum of its proper divisors (131953288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115129112 is a wasteful number, since it uses less digits than its factorization.

115129112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155 (or 3151 counting only the distinct ones).

The product of its digits is 180, while the sum is 23.

The square root of 115129112 is about 10729.8234841026. The cubic root of 115129112 is about 486.4763347380.

The spelling of 115129112 in words is "one hundred fifteen million, one hundred twenty-nine thousand, one hundred twelve".