12860681 has 4 divisors (see below), whose sum is σ = 12876612. Its totient is φ = 12844752.

The previous prime is 12860669. The next prime is 12860693. The reversal of 12860681 is 18606821.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12860669) and next prime (12860693).

It can be written as a sum of positive squares in 2 ways, for example, as 547600 + 12313081 = 740^2 + 3509^2 .

It is a cyclic number.

It is not a de Polignac number, because 12860681 - 2¹⁰ = 12859657 is a prime.

It is a super-2 number, since 2×12860681² = 330794231567522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12860581) 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, 6686 + ... + 8391.

It is an arithmetic number, because the mean of its divisors is an integer number (3219153).

Almost surely, 2^12860681 is an apocalyptic number.

It is an amenable number.

12860681 is a deficient number, since it is larger than the sum of its proper divisors (15931).

12860681 is an equidigital number, since it uses as much as digits as its factorization.

12860681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15930.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 12860681 is about 3586.1791645148. The cubic root of 12860681 is about 234.2904871234.

It can be divided in two parts, 1 and 2860681, that added together give a palindrome (2860682).

The spelling of 12860681 in words is "twelve million, eight hundred sixty thousand, six hundred eighty-one".