13218967 has 2 divisors, whose sum is σ = 13218968. Its totient is φ = 13218966.

The previous prime is 13218943. The next prime is 13218977. The reversal of 13218967 is 76981231.

13218967 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 a cyclic number.

It is not a de Polignac number, because 13218967 - 2⁷ = 13218839 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 (13218937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6609483 + 6609484.

It is an arithmetic number, because the mean of its divisors is an integer number (6609484).

Almost surely, 2^13218967 is an apocalyptic number.

13218967 is a deficient number, since it is larger than the sum of its proper divisors (1).

13218967 is an equidigital number, since it uses as much as digits as its factorization.

13218967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 13218967 is about 3635.7897353945. The cubic root of 13218967 is about 236.4462911439.

The spelling of 13218967 in words is "thirteen million, two hundred eighteen thousand, nine hundred sixty-seven".