115543020 has 24 divisors (see below), whose sum is σ = 323520624. Its totient is φ = 30811456.

The previous prime is 115542997. The next prime is 115543049. The reversal of 115543020 is 20345511.

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, 962799 + ... + 962918.

It is an arithmetic number, because the mean of its divisors is an integer number (13480026).

Almost surely, 2^115543020 is an apocalyptic number.

115543020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115543020 is an abundant number, since it is smaller than the sum of its proper divisors (207977604).

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

115543020 is a wasteful number, since it uses less digits than its factorization.

115543020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925729 (or 1925727 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 115543020 is about 10749.0939153028. The cubic root of 115543020 is about 487.0586248323.

Adding to 115543020 its reverse (20345511), we get a palindrome (135888531).

The spelling of 115543020 in words is "one hundred fifteen million, five hundred forty-three thousand, twenty".