2313309 has 16 divisors (see below), whose sum is σ = 3319488. Its totient is φ = 1427712.

The previous prime is 2313253. The next prime is 2313323. The reversal of 2313309 is 9033132.

2313309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2313309 - 2⁸ = 2313053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3079 + ... + 3755.

It is an arithmetic number, because the mean of its divisors is an integer number (207468).

2^2313309 is an apocalyptic number.

It is an amenable number.

2313309 is a deficient number, since it is larger than the sum of its proper divisors (1006179).

2313309 is a wasteful number, since it uses less digits than its factorization.

2313309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 2313309 is about 1520.9566068761. The cubic root of 2313309 is about 132.2547307911.

The spelling of 2313309 in words is "two million, three hundred thirteen thousand, three hundred nine".