112902809 has 4 divisors (see below), whose sum is σ = 112925904. Its totient is φ = 112879716.

The previous prime is 112902787. The next prime is 112902827. The reversal of 112902809 is 908209211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112902809 - 2¹² = 112898713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112902409) 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, 1007 + ... + 15060.

It is an arithmetic number, because the mean of its divisors is an integer number (28231476).

Almost surely, 2^112902809 is an apocalyptic number.

It is an amenable number.

112902809 is a deficient number, since it is larger than the sum of its proper divisors (23095).

112902809 is an equidigital number, since it uses as much as digits as its factorization.

112902809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23094.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 112902809 is about 10625.5733492363. The cubic root of 112902809 is about 483.3201657398.

The spelling of 112902809 in words is "one hundred twelve million, nine hundred two thousand, eight hundred nine".