112775989 has 2 divisors, whose sum is σ = 112775990. Its totient is φ = 112775988.

The previous prime is 112775987. The next prime is 112776017. The reversal of 112775989 is 989577211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96373489 + 16402500 = 9817^2 + 4050^2 .

It is a cyclic number.

It is not a de Polignac number, because 112775989 - 2¹ = 112775987 is a prime.

Together with 112775987, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112775981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56387994 + 56387995.

It is an arithmetic number, because the mean of its divisors is an integer number (56387995).

Almost surely, 2^112775989 is an apocalyptic number.

It is an amenable number.

112775989 is a deficient number, since it is larger than the sum of its proper divisors (1).

112775989 is an equidigital number, since it uses as much as digits as its factorization.

112775989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 49.

The square root of 112775989 is about 10619.6039945000. The cubic root of 112775989 is about 483.1391320750.

The spelling of 112775989 in words is "one hundred twelve million, seven hundred seventy-five thousand, nine hundred eighty-nine".