12681037 has 4 divisors (see below), whose sum is σ = 13348480. Its totient is φ = 12013596.

The previous prime is 12681017. The next prime is 12681043. The reversal of 12681037 is 73018621.

12681037 is digitally balanced in base 3, 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 12681037 - 2⁷ = 12680909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12680996 and 12681014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12681007) 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, 333693 + ... + 333730.

It is an arithmetic number, because the mean of its divisors is an integer number (3337120).

Almost surely, 2^12681037 is an apocalyptic number.

It is an amenable number.

12681037 is a deficient number, since it is larger than the sum of its proper divisors (667443).

12681037 is an equidigital number, since it uses as much as digits as its factorization.

12681037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667442.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12681037 is about 3561.0443692827. The cubic root of 12681037 is about 233.1944749772.

Adding to 12681037 its reverse (73018621), we get a palindrome (85699658).

The spelling of 12681037 in words is "twelve million, six hundred eighty-one thousand, thirty-seven".