12764165 has 4 divisors (see below), whose sum is σ = 15317004. Its totient is φ = 10211328.

The previous prime is 12764099. The next prime is 12764173. The reversal of 12764165 is 56146721.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7963684 + 4800481 = 2822^2 + 2191^2 .

It is a cyclic number.

It is not a de Polignac number, because 12764165 - 2²⁰ = 11715589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276412 + ... + 1276421.

It is an arithmetic number, because the mean of its divisors is an integer number (3829251).

Almost surely, 2^12764165 is an apocalyptic number.

It is an amenable number.

12764165 is a deficient number, since it is larger than the sum of its proper divisors (2552839).

12764165 is an equidigital number, since it uses as much as digits as its factorization.

12764165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552838.

The product of its digits is 10080, while the sum is 32.

The square root of 12764165 is about 3572.6971604098. The cubic root of 12764165 is about 233.7029188256.

The spelling of 12764165 in words is "twelve million, seven hundred sixty-four thousand, one hundred sixty-five".