2313665 has 4 divisors (see below), whose sum is σ = 2776404. Its totient is φ = 1850928.

The previous prime is 2313659. The next prime is 2313667. The reversal of 2313665 is 5663132.

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 1132096 + 1181569 = 1064^2 + 1087^2 .

It is a cyclic number.

It is not a de Polignac number, because 2313665 - 2⁶ = 2313601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2313667) 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, 231362 + ... + 231371.

It is an arithmetic number, because the mean of its divisors is an integer number (694101).

2^2313665 is an apocalyptic number.

It is an amenable number.

2313665 is a deficient number, since it is larger than the sum of its proper divisors (462739).

2313665 is an equidigital number, since it uses as much as digits as its factorization.

2313665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462738.

The product of its digits is 3240, while the sum is 26.

The square root of 2313665 is about 1521.0736339836. The cubic root of 2313665 is about 132.2615147629.

Adding to 2313665 its reverse (5663132), we get a palindrome (7976797).

The spelling of 2313665 in words is "two million, three hundred thirteen thousand, six hundred sixty-five".