12681823 has 16 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 9784800.

The previous prime is 12681817. The next prime is 12681829. The reversal of 12681823 is 32818621.

It is an interprime number because it is at equal distance from previous prime (12681817) and next prime (12681829).

It is a cyclic number.

It is not a de Polignac number, because 12681823 - 2¹⁷ = 12550751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12681829) 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, 7638 + ... + 9148.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^12681823 is an apocalyptic number.

12681823 is a deficient number, since it is larger than the sum of its proper divisors (3284897).

12681823 is a wasteful number, since it uses less digits than its factorization.

12681823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638.

The product of its digits is 4608, while the sum is 31.

The square root of 12681823 is about 3561.1547284554. The cubic root of 12681823 is about 233.1992928552.

The spelling of 12681823 in words is "twelve million, six hundred eighty-one thousand, eight hundred twenty-three".