12645911 has 2 divisors, whose sum is σ = 12645912. Its totient is φ = 12645910.

The previous prime is 12645901. The next prime is 12645931. The reversal of 12645911 is 11954621.

12645911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12645911 - 2¹⁴ = 12629527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12645901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6322955 + 6322956.

It is an arithmetic number, because the mean of its divisors is an integer number (6322956).

Almost surely, 2^12645911 is an apocalyptic number.

12645911 is a deficient number, since it is larger than the sum of its proper divisors (1).

12645911 is an equidigital number, since it uses as much as digits as its factorization.

12645911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 12645911 is about 3556.1089690840. The cubic root of 12645911 is about 232.9789625317.

The spelling of 12645911 in words is "twelve million, six hundred forty-five thousand, nine hundred eleven".