112315309 has 4 divisors (see below), whose sum is σ = 112409116. Its totient is φ = 112221504.

The previous prime is 112315303. The next prime is 112315331. The reversal of 112315309 is 903513211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 903513211 = 3659 ⋅246929.

It can be written as a sum of positive squares in 2 ways, for example, as 57229225 + 55086084 = 7565^2 + 7422^2 .

It is a cyclic number.

It is not a de Polignac number, because 112315309 - 2¹⁹ = 111791021 is a prime.

It is a super-2 number, since 2×112315309² = 25229457271530962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112315303) 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, 45084 + ... + 47509.

It is an arithmetic number, because the mean of its divisors is an integer number (28102279).

Almost surely, 2^112315309 is an apocalyptic number.

It is an amenable number.

112315309 is a deficient number, since it is larger than the sum of its proper divisors (93807).

112315309 is an equidigital number, since it uses as much as digits as its factorization.

112315309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93806.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 112315309 is about 10597.8917243006. The cubic root of 112315309 is about 482.4803739769.

The spelling of 112315309 in words is "one hundred twelve million, three hundred fifteen thousand, three hundred nine".