12001165 has 16 divisors (see below), whose sum is σ = 15857856. Its totient is φ = 8646400.

The previous prime is 12001163. The next prime is 12001169. The reversal of 12001165 is 56110021.

It is a happy number.

It is not a de Polignac number, because 12001165 - 2¹ = 12001163 is a prime.

It is a super-2 number, since 2×12001165² = 288055922714450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5250 + ... + 7180.

It is an arithmetic number, because the mean of its divisors is an integer number (991116).

Almost surely, 2^12001165 is an apocalyptic number.

It is an amenable number.

12001165 is a deficient number, since it is larger than the sum of its proper divisors (3856691).

12001165 is a wasteful number, since it uses less digits than its factorization.

12001165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 12001165 is about 3464.2697643226. The cubic root of 12001165 is about 228.9502571159.

Adding to 12001165 its reverse (56110021), we get a palindrome (68111186).

The spelling of 12001165 in words is "twelve million, one thousand, one hundred sixty-five".