12811607 has 2 divisors, whose sum is σ = 12811608. Its totient is φ = 12811606.

The previous prime is 12811597. The next prime is 12811661. The reversal of 12811607 is 70611821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12811607 - 2⁶ = 12811543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12811697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6405803 + 6405804.

It is an arithmetic number, because the mean of its divisors is an integer number (6405804).

Almost surely, 2^12811607 is an apocalyptic number.

12811607 is a deficient number, since it is larger than the sum of its proper divisors (1).

12811607 is an equidigital number, since it uses as much as digits as its factorization.

12811607 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 26.

The square root of 12811607 is about 3579.3305239947. The cubic root of 12811607 is about 233.9921040996.

The spelling of 12811607 in words is "twelve million, eight hundred eleven thousand, six hundred seven".