13211641 has 2 divisors, whose sum is σ = 13211642. Its totient is φ = 13211640.

The previous prime is 13211623. The next prime is 13211657. The reversal of 13211641 is 14611231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10916416 + 2295225 = 3304^2 + 1515^2 .

It is a cyclic number.

It is not a de Polignac number, because 13211641 - 2⁹ = 13211129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13211741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605820 + 6605821.

It is an arithmetic number, because the mean of its divisors is an integer number (6605821).

Almost surely, 2^13211641 is an apocalyptic number.

It is an amenable number.

13211641 is a deficient number, since it is larger than the sum of its proper divisors (1).

13211641 is an equidigital number, since it uses as much as digits as its factorization.

13211641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 13211641 is about 3634.7821117641. The cubic root of 13211641 is about 236.4026032716.

Adding to 13211641 its reverse (14611231), we get a palindrome (27822872).

The spelling of 13211641 in words is "thirteen million, two hundred eleven thousand, six hundred forty-one".