12544667 has 2 divisors, whose sum is σ = 12544668. Its totient is φ = 12544666.

The previous prime is 12544663. The next prime is 12544669. The reversal of 12544667 is 76644521.

12544667 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (76644521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12544667 - 2² = 12544663 is a prime.

Together with 12544669, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12544663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272333 + 6272334.

It is an arithmetic number, because the mean of its divisors is an integer number (6272334).

Almost surely, 2^12544667 is an apocalyptic number.

12544667 is a deficient number, since it is larger than the sum of its proper divisors (1).

12544667 is an equidigital number, since it uses as much as digits as its factorization.

12544667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 12544667 is about 3541.8451406012. The cubic root of 12544667 is about 232.3555475307.

The spelling of 12544667 in words is "twelve million, five hundred forty-four thousand, six hundred sixty-seven".