112991680 has 28 divisors (see below), whose sum is σ = 269062200. Its totient is φ = 45196544.

The previous prime is 112991677. The next prime is 112991693. The reversal of 112991680 is 86199211.

It is a congruent number.

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, 176230 + ... + 176869.

Almost surely, 2^112991680 is an apocalyptic number.

112991680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112991680 is an abundant number, since it is smaller than the sum of its proper divisors (156070520).

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

112991680 is an equidigital number, since it uses as much as digits as its factorization.

112991680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353116 (or 353106 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 112991680 is about 10629.7544656497. The cubic root of 112991680 is about 483.4469470001.

The spelling of 112991680 in words is "one hundred twelve million, nine hundred ninety-one thousand, six hundred eighty".