3112309 has 16 divisors (see below), whose sum is σ = 3499200. Its totient is φ = 2754304.

The previous prime is 3112303. The next prime is 3112313. The reversal of 3112309 is 9032113.

It is not a de Polignac number, because 3112309 - 2³ = 3112301 is a prime.

It is a super-2 number, since 2×3112309² = 19372934622962, which contains 22 as substring.

It is a Duffinian number.

3112309 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29034 + ... + 29140.

It is an arithmetic number, because the mean of its divisors is an integer number (218700).

Almost surely, 2^3112309 is an apocalyptic number.

It is an amenable number.

3112309 is a deficient number, since it is larger than the sum of its proper divisors (386891).

3112309 is a wasteful number, since it uses less digits than its factorization.

3112309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 3112309 is about 1764.1737442780. The cubic root of 3112309 is about 146.0027052729.

The spelling of 3112309 in words is "three million, one hundred twelve thousand, three hundred nine".