12143632 has 20 divisors (see below), whose sum is σ = 24552000. Its totient is φ = 5807648.

The previous prime is 12143591. The next prime is 12143633. The reversal of 12143632 is 23634121.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12143633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16132 + ... + 16867.

It is an arithmetic number, because the mean of its divisors is an integer number (1227600).

Almost surely, 2^12143632 is an apocalyptic number.

It is an amenable number.

12143632 is an abundant number, since it is smaller than the sum of its proper divisors (12408368).

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

12143632 is a wasteful number, since it uses less digits than its factorization.

12143632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33030 (or 33024 counting only the distinct ones).

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

The square root of 12143632 is about 3484.7714415726. The cubic root of 12143632 is about 229.8526592551.

Adding to 12143632 its reverse (23634121), we get a palindrome (35777753).

The spelling of 12143632 in words is "twelve million, one hundred forty-three thousand, six hundred thirty-two".