12732131 has 8 divisors (see below), whose sum is σ = 13278720. Its totient is φ = 12192768.

The previous prime is 12732127. The next prime is 12732143. The reversal of 12732131 is 13123721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12732131 - 2² = 12732127 is a prime.

It is a super-2 number, since 2×12732131² = 324214319602322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12732101) 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 7 ways as a sum of consecutive naturals, for example, 1955 + ... + 5411.

It is an arithmetic number, because the mean of its divisors is an integer number (1659840).

Almost surely, 2^12732131 is an apocalyptic number.

12732131 is a deficient number, since it is larger than the sum of its proper divisors (546589).

12732131 is a wasteful number, since it uses less digits than its factorization.

12732131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613.

The product of its digits is 252, while the sum is 20.

The square root of 12732131 is about 3568.2111764861. The cubic root of 12732131 is about 233.5072483448.

Adding to 12732131 its reverse (13123721), we get a palindrome (25855852).

The spelling of 12732131 in words is "twelve million, seven hundred thirty-two thousand, one hundred thirty-one".