12051165 has 16 divisors (see below), whose sum is σ = 22036608. Its totient is φ = 5509056.

The previous prime is 12051139. The next prime is 12051167. The reversal of 12051165 is 56115021.

It is not a de Polignac number, because 12051165 - 2⁶ = 12051101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051167) 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, 57282 + ... + 57491.

It is an arithmetic number, because the mean of its divisors is an integer number (1377288).

Almost surely, 2^12051165 is an apocalyptic number.

12051165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12051165 is a deficient number, since it is larger than the sum of its proper divisors (9985443).

12051165 is a wasteful number, since it uses less digits than its factorization.

12051165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114788.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 12051165 is about 3471.4787915239. The cubic root of 12051165 is about 229.2677721730.

Adding to 12051165 its reverse (56115021), we get a palindrome (68166186).

The spelling of 12051165 in words is "twelve million, fifty-one thousand, one hundred sixty-five".