12643132 has 12 divisors (see below), whose sum is σ = 23290120. Its totient is φ = 5988816.

The previous prime is 12643117. The next prime is 12643177. The reversal of 12643132 is 23134621.

12643132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83103 + ... + 83254.

Almost surely, 2^12643132 is an apocalyptic number.

It is an amenable number.

12643132 is a deficient number, since it is larger than the sum of its proper divisors (10646988).

12643132 is a wasteful number, since it uses less digits than its factorization.

12643132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166380 (or 166378 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 12643132 is about 3555.7182115573. The cubic root of 12643132 is about 232.9618951975.

Adding to 12643132 its reverse (23134621), we get a palindrome (35777753).

The spelling of 12643132 in words is "twelve million, six hundred forty-three thousand, one hundred thirty-two".