12681007 has 2 divisors, whose sum is σ = 12681008. Its totient is φ = 12681006.

The previous prime is 12680977. The next prime is 12681017. The reversal of 12681007 is 70018621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12681007 - 2¹¹ = 12678959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12681017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6340503 + 6340504.

It is an arithmetic number, because the mean of its divisors is an integer number (6340504).

Almost surely, 2^12681007 is an apocalyptic number.

12681007 is a deficient number, since it is larger than the sum of its proper divisors (1).

12681007 is an equidigital number, since it uses as much as digits as its factorization.

12681007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 12681007 is about 3561.0401570328. The cubic root of 12681007 is about 233.1942910847.

Adding to 12681007 its reverse (70018621), we get a palindrome (82699628).

The spelling of 12681007 in words is "twelve million, six hundred eighty-one thousand, seven".