12132689 has 2 divisors, whose sum is σ = 12132690. Its totient is φ = 12132688.

The previous prime is 12132683. The next prime is 12132709. The reversal of 12132689 is 98623121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7756225 + 4376464 = 2785^2 + 2092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12132689 is a prime.

It is not a weakly prime, because it can be changed into another prime (12132683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066344 + 6066345.

It is an arithmetic number, because the mean of its divisors is an integer number (6066345).

Almost surely, 2^12132689 is an apocalyptic number.

It is an amenable number.

12132689 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132689 is an equidigital number, since it uses as much as digits as its factorization.

12132689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 12132689 is about 3483.2009703719. The cubic root of 12132689 is about 229.7835960742.

It can be divided in two parts, 12132 and 689, that added together give a palindrome (12821).

The spelling of 12132689 in words is "twelve million, one hundred thirty-two thousand, six hundred eighty-nine".