115543880 has 16 divisors (see below), whose sum is σ = 259973820. Its totient is φ = 46217536.

The previous prime is 115543867. The next prime is 115543903. The reversal of 115543880 is 88345511.

It can be written as a sum of positive squares in 2 ways, for example, as 114618436 + 925444 = 10706^2 + 962^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 115543880.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1444259 + ... + 1444338.

Almost surely, 2^115543880 is an apocalyptic number.

115543880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115543880 is an abundant number, since it is smaller than the sum of its proper divisors (144429940).

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

115543880 is a wasteful number, since it uses less digits than its factorization.

115543880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888608 (or 2888604 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 115543880 is about 10749.1339186001. The cubic root of 115543880 is about 487.0598332404.

The spelling of 115543880 in words is "one hundred fifteen million, five hundred forty-three thousand, eight hundred eighty".