112991408 has 20 divisors (see below), whose sum is σ = 224261688. Its totient is φ = 55117440.

The previous prime is 112991407. The next prime is 112991419. The reversal of 112991408 is 804199211.

It is not an unprimeable number, because it can be changed into a prime (112991407) by changing a digit.

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, 85466 + ... + 86777.

Almost surely, 2^112991408 is an apocalyptic number.

It is an amenable number.

112991408 is a deficient number, since it is larger than the sum of its proper divisors (111270280).

112991408 is a wasteful number, since it uses less digits than its factorization.

112991408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172292 (or 172286 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 112991408 is about 10629.7416713672. The cubic root of 112991408 is about 483.4465590728.

The spelling of 112991408 in words is "one hundred twelve million, nine hundred ninety-one thousand, four hundred eight".