112789091 has 4 divisors (see below), whose sum is σ = 116678400. Its totient is φ = 108899784.

The previous prime is 112789087. The next prime is 112789097. The reversal of 112789091 is 190987211.

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 112789091 - 2² = 112789087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112789097) 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, 1944611 + ... + 1944668.

It is an arithmetic number, because the mean of its divisors is an integer number (29169600).

Almost surely, 2^112789091 is an apocalyptic number.

112789091 is a deficient number, since it is larger than the sum of its proper divisors (3889309).

112789091 is an equidigital number, since it uses as much as digits as its factorization.

112789091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889308.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 112789091 is about 10620.2208545774. The cubic root of 112789091 is about 483.1578412697.

The spelling of 112789091 in words is "one hundred twelve million, seven hundred eighty-nine thousand, ninety-one".