2312681 has 4 divisors (see below), whose sum is σ = 2643072. Its totient is φ = 1982292.

The previous prime is 2312677. The next prime is 2312689. The reversal of 2312681 is 1862132.

2312681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2312681 - 2² = 2312677 is a prime.

It is a super-2 number, since 2×2312681² = 10696986815522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312689) 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 3 ways as a sum of consecutive naturals, for example, 165185 + ... + 165198.

It is an arithmetic number, because the mean of its divisors is an integer number (660768).

2^2312681 is an apocalyptic number.

It is an amenable number.

2312681 is a deficient number, since it is larger than the sum of its proper divisors (330391).

2312681 is an equidigital number, since it uses as much as digits as its factorization.

2312681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330390.

The product of its digits is 576, while the sum is 23.

The square root of 2312681 is about 1520.7501438435. The cubic root of 2312681 is about 132.2427618629.

The spelling of 2312681 in words is "two million, three hundred twelve thousand, six hundred eighty-one".