12336641 has 2 divisors, whose sum is σ = 12336642. Its totient is φ = 12336640.

The previous prime is 12336637. The next prime is 12336647. The reversal of 12336641 is 14663321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11082241 + 1254400 = 3329^2 + 1120^2 .

It is an emirp because it is prime and its reverse (14663321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12336641 - 2² = 12336637 is a prime.

It is a super-2 number, since 2×12336641² = 304385422325762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12336641.

It is not a weakly prime, because it can be changed into another prime (12336647) 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 as a sum of consecutive naturals, namely, 6168320 + 6168321.

It is an arithmetic number, because the mean of its divisors is an integer number (6168321).

Almost surely, 2^12336641 is an apocalyptic number.

It is an amenable number.

12336641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12336641 is an equidigital number, since it uses as much as digits as its factorization.

12336641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

The square root of 12336641 is about 3512.3554774538. The cubic root of 12336641 is about 231.0640115452.

Adding to 12336641 its reverse (14663321), we get a palindrome (26999962).

The spelling of 12336641 in words is "twelve million, three hundred thirty-six thousand, six hundred forty-one".