112199965 has 4 divisors (see below), whose sum is σ = 134639964. Its totient is φ = 89759968.

The previous prime is 112199963. The next prime is 112199977. The reversal of 112199965 is 569991211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58339044 + 53860921 = 7638^2 + 7339^2 .

It is a cyclic number.

It is not a de Polignac number, because 112199965 - 2¹ = 112199963 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 (112199963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11219992 + ... + 11220001.

It is an arithmetic number, because the mean of its divisors is an integer number (33659991).

Almost surely, 2^112199965 is an apocalyptic number.

It is an amenable number.

112199965 is a deficient number, since it is larger than the sum of its proper divisors (22439999).

112199965 is an equidigital number, since it uses as much as digits as its factorization.

112199965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22439998.

The product of its digits is 43740, while the sum is 43.

The square root of 112199965 is about 10592.4484893720. The cubic root of 112199965 is about 482.3151537641.

The spelling of 112199965 in words is "one hundred twelve million, one hundred ninety-nine thousand, nine hundred sixty-five".