12132641 has 2 divisors, whose sum is σ = 12132642. Its totient is φ = 12132640.

The previous prime is 12132629. The next prime is 12132667. The reversal of 12132641 is 14623121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10214416 + 1918225 = 3196^2 + 1385^2 .

It is an emirp because it is prime and its reverse (14623121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12132641 is a prime.

It is not a weakly prime, because it can be changed into another prime (12132671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066320 + 6066321.

It is an arithmetic number, because the mean of its divisors is an integer number (6066321).

Almost surely, 2^12132641 is an apocalyptic number.

It is an amenable number.

12132641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132641 is an equidigital number, since it uses as much as digits as its factorization.

12132641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 12132641 is about 3483.1940801511. The cubic root of 12132641 is about 229.7832930464.

Adding to 12132641 its reverse (14623121), we get a palindrome (26755762).

The spelling of 12132641 in words is "twelve million, one hundred thirty-two thousand, six hundred forty-one".