112516991 has 4 divisors (see below), whose sum is σ = 112797984. Its totient is φ = 112236000.

The previous prime is 112516973. The next prime is 112517057. The reversal of 112516991 is 199615211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112516991 - 2²⁶ = 45408127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112512991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139895 + ... + 140696.

It is an arithmetic number, because the mean of its divisors is an integer number (28199496).

Almost surely, 2^112516991 is an apocalyptic number.

112516991 is a deficient number, since it is larger than the sum of its proper divisors (280993).

112516991 is an equidigital number, since it uses as much as digits as its factorization.

112516991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280992.

The product of its digits is 4860, while the sum is 35.

The square root of 112516991 is about 10607.4026509792. The cubic root of 112516991 is about 482.7689942352.

The spelling of 112516991 in words is "one hundred twelve million, five hundred sixteen thousand, nine hundred ninety-one".