12133765 has 16 divisors (see below), whose sum is σ = 17365248. Its totient is φ = 7958016.

The previous prime is 12133757. The next prime is 12133769. The reversal of 12133765 is 56733121.

It is a cyclic number.

It is not a de Polignac number, because 12133765 - 2³ = 12133757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133769) 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 15 ways as a sum of consecutive naturals, for example, 6732 + ... + 8341.

It is an arithmetic number, because the mean of its divisors is an integer number (1085328).

Almost surely, 2^12133765 is an apocalyptic number.

It is an amenable number.

12133765 is a deficient number, since it is larger than the sum of its proper divisors (5231483).

12133765 is a wasteful number, since it uses less digits than its factorization.

12133765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15108.

The product of its digits is 3780, while the sum is 28.

The square root of 12133765 is about 3483.3554225775. The cubic root of 12133765 is about 229.7903887383.

Adding to 12133765 its reverse (56733121), we get a palindrome (68866886).

The spelling of 12133765 in words is "twelve million, one hundred thirty-three thousand, seven hundred sixty-five".