115531554 has 16 divisors (see below), whose sum is σ = 231240960. Its totient is φ = 38480880.

The previous prime is 115531543. The next prime is 115531561. The reversal of 115531554 is 455135511.

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, 1944 + ... + 15324.

It is an arithmetic number, because the mean of its divisors is an integer number (14452560).

Almost surely, 2^115531554 is an apocalyptic number.

115531554 is an abundant number, since it is smaller than the sum of its proper divisors (115709406).

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

115531554 is a wasteful number, since it uses less digits than its factorization.

115531554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14825.

The product of its digits is 7500, while the sum is 30.

The square root of 115531554 is about 10748.5605547906. The cubic root of 115531554 is about 487.0425130875.

The spelling of 115531554 in words is "one hundred fifteen million, five hundred thirty-one thousand, five hundred fifty-four".