112991679 has 20 divisors (see below), whose sum is σ = 170380584. Its totient is φ = 74618064.

The previous prime is 112991677. The next prime is 112991693. The reversal of 112991679 is 976199211.

It is not a de Polignac number, because 112991679 - 2¹ = 112991677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112991677) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2149 + ... + 15185.

Almost surely, 2^112991679 is an apocalyptic number.

112991679 is a deficient number, since it is larger than the sum of its proper divisors (57388905).

112991679 is a wasteful number, since it uses less digits than its factorization.

112991679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13156 (or 13147 counting only the distinct ones).

The product of its digits is 61236, while the sum is 45.

The square root of 112991679 is about 10629.7544186119. The cubic root of 112991679 is about 483.4469455739.

The spelling of 112991679 in words is "one hundred twelve million, nine hundred ninety-one thousand, six hundred seventy-nine".