12236641 has 2 divisors, whose sum is σ = 12236642. Its totient is φ = 12236640.

The previous prime is 12236629. The next prime is 12236663. The reversal of 12236641 is 14663221.

12236641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9333025 + 2903616 = 3055^2 + 1704^2 .

It is an emirp because it is prime and its reverse (14663221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12236641 - 2⁹ = 12236129 is a prime.

It is a zygodrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12236611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6118320 + 6118321.

It is an arithmetic number, because the mean of its divisors is an integer number (6118321).

Almost surely, 2^12236641 is an apocalyptic number.

It is an amenable number.

12236641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12236641 is an equidigital number, since it uses as much as digits as its factorization.

12236641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 12236641 is about 3498.0910508447. The cubic root of 12236641 is about 230.4379870915.

Adding to 12236641 its reverse (14663221), we get a palindrome (26899862).

It can be divided in two parts, 122 and 36641, that added together give a palindrome (36763).

The spelling of 12236641 in words is "twelve million, two hundred thirty-six thousand, six hundred forty-one".