12661132 has 24 divisors (see below), whose sum is σ = 25224192. Its totient is φ = 5504400.

The previous prime is 12661123. The next prime is 12661147. The reversal of 12661132 is 23116621.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5244 + ... + 7267.

It is an arithmetic number, because the mean of its divisors is an integer number (1051008).

Almost surely, 2^12661132 is an apocalyptic number.

It is an amenable number.

12661132 is a deficient number, since it is larger than the sum of its proper divisors (12563060).

12661132 is a wasteful number, since it uses less digits than its factorization.

12661132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12549 (or 12547 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 12661132 is about 3558.2484455136. The cubic root of 12661132 is about 233.0723985570.

Adding to 12661132 its reverse (23116621), we get a palindrome (35777753).

The spelling of 12661132 in words is "twelve million, six hundred sixty-one thousand, one hundred thirty-two".