112769809 has 4 divisors (see below), whose sum is σ = 112805440. Its totient is φ = 112734180.

The previous prime is 112769753. The next prime is 112769843. The reversal of 112769809 is 908967211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 908967211 = 131 ⋅6938681.

It is a cyclic number.

It is not a de Polignac number, because 112769809 - 2⁷ = 112769681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112769869) 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, 12549 + ... + 19570.

It is an arithmetic number, because the mean of its divisors is an integer number (28201360).

Almost surely, 2^112769809 is an apocalyptic number.

It is an amenable number.

112769809 is a deficient number, since it is larger than the sum of its proper divisors (35631).

112769809 is an equidigital number, since it uses as much as digits as its factorization.

112769809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35630.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 112769809 is about 10619.3130192117. The cubic root of 112769809 is about 483.1303067497.

The spelling of 112769809 in words is "one hundred twelve million, seven hundred sixty-nine thousand, eight hundred nine".