112709 has 4 divisors (see below), whose sum is σ = 115500. Its totient is φ = 109920.

The previous prime is 112691. The next prime is 112741. The reversal of 112709 is 907211.

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 9025 + 103684 = 95^2 + 322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112709 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 112709.

It is not an unprimeable number, because it can be changed into a prime (112759) 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, 1334 + ... + 1415.

It is an arithmetic number, because the mean of its divisors is an integer number (28875).

2¹¹²⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

112709 is a deficient number, since it is larger than the sum of its proper divisors (2791).

112709 is an equidigital number, since it uses as much as digits as its factorization.

112709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 112709 is about 335.7216108623. The cubic root of 112709 is about 48.3043451490.

The spelling of 112709 in words is "one hundred twelve thousand, seven hundred nine".