12165736 has 16 divisors (see below), whose sum is σ = 24884640. Its totient is φ = 5529840.

The previous prime is 12165721. The next prime is 12165739. The reversal of 12165736 is 63756121.

It is a junction number, because it is equal to n+sod(n) for n = 12165698 and 12165707.

It is not an unprimeable number, because it can be changed into a prime (12165739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69036 + ... + 69211.

It is an arithmetic number, because the mean of its divisors is an integer number (1555290).

Almost surely, 2^12165736 is an apocalyptic number.

It is an amenable number.

12165736 is an abundant number, since it is smaller than the sum of its proper divisors (12718904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12165736 is a wasteful number, since it uses less digits than its factorization.

12165736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138264 (or 138260 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 12165736 is about 3487.9415132711. The cubic root of 12165736 is about 229.9920350109.

The spelling of 12165736 in words is "twelve million, one hundred sixty-five thousand, seven hundred thirty-six".