12800165 has 16 divisors (see below), whose sum is σ = 18161280. Its totient is φ = 8473920.

The previous prime is 12800153. The next prime is 12800171. The reversal of 12800165 is 56100821.

It is not a de Polignac number, because 12800165 - 2⁸ = 12799909 is a prime.

It is a super-3 number, since 3×12800165³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12800165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5291 + ... + 7320.

It is an arithmetic number, because the mean of its divisors is an integer number (1135080).

Almost surely, 2^12800165 is an apocalyptic number.

It is an amenable number.

12800165 is a deficient number, since it is larger than the sum of its proper divisors (5361115).

12800165 is a wasteful number, since it uses less digits than its factorization.

12800165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12652.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 12800165 is about 3577.7318233764. The cubic root of 12800165 is about 233.9224241838.

Adding to 12800165 its reverse (56100821), we get a palindrome (68900986).

The spelling of 12800165 in words is "twelve million, eight hundred thousand, one hundred sixty-five".