12665167 has 2 divisors, whose sum is σ = 12665168. Its totient is φ = 12665166.

The previous prime is 12665131. The next prime is 12665173. The reversal of 12665167 is 76156621.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (76156621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12665167 is a prime.

It is equal to p₈₂₈₇₉₀ and since 12665167 and 828790 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12665197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6332583 + 6332584.

It is an arithmetic number, because the mean of its divisors is an integer number (6332584).

Almost surely, 2^12665167 is an apocalyptic number.

12665167 is a deficient number, since it is larger than the sum of its proper divisors (1).

12665167 is an equidigital number, since it uses as much as digits as its factorization.

12665167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 12665167 is about 3558.8153927958. The cubic root of 12665167 is about 233.0971553544.

The spelling of 12665167 in words is "twelve million, six hundred sixty-five thousand, one hundred sixty-seven".