12888165 has 16 divisors (see below), whose sum is σ = 21518208. Its totient is φ = 6574656.

The previous prime is 12888163. The next prime is 12888181. The reversal of 12888165 is 56188821.

It is not a de Polignac number, because 12888165 - 2¹ = 12888163 is a prime.

It is a super-2 number, since 2×12888165² = 332209594134450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888163) 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, 18334 + ... + 19023.

It is an arithmetic number, because the mean of its divisors is an integer number (1344888).

Almost surely, 2^12888165 is an apocalyptic number.

12888165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12888165 is a deficient number, since it is larger than the sum of its proper divisors (8630043).

12888165 is a wasteful number, since it uses less digits than its factorization.

12888165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37388.

The product of its digits is 30720, while the sum is 39.

The square root of 12888165 is about 3590.0090529134. The cubic root of 12888165 is about 234.4572656991.

It can be divided in two parts, 1288816 and 5, that added together give a palindrome (1288821).

The spelling of 12888165 in words is "twelve million, eight hundred eighty-eight thousand, one hundred sixty-five".