12165967 has 4 divisors (see below), whose sum is σ = 13271976. Its totient is φ = 11059960.

The previous prime is 12165953. The next prime is 12165983. The reversal of 12165967 is 76956121.

12165967 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12165967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12165917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552988 + ... + 553009.

It is an arithmetic number, because the mean of its divisors is an integer number (3317994).

Almost surely, 2^12165967 is an apocalyptic number.

12165967 is a deficient number, since it is larger than the sum of its proper divisors (1106009).

12165967 is a wasteful number, since it uses less digits than its factorization.

12165967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106008.

The product of its digits is 22680, while the sum is 37.

The square root of 12165967 is about 3487.9746272013. The cubic root of 12165967 is about 229.9934906790.

The spelling of 12165967 in words is "twelve million, one hundred sixty-five thousand, nine hundred sixty-seven".