13213441 has 2 divisors, whose sum is σ = 13213442. Its totient is φ = 13213440.

The previous prime is 13213423. The next prime is 13213451. The reversal of 13213441 is 14431231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12567025 + 646416 = 3545^2 + 804^2 .

It is an emirp because it is prime and its reverse (14431231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13213441 - 2⁹ = 13212929 is a prime.

It is not a weakly prime, because it can be changed into another prime (13213451) 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, 6606720 + 6606721.

It is an arithmetic number, because the mean of its divisors is an integer number (6606721).

Almost surely, 2^13213441 is an apocalyptic number.

It is an amenable number.

13213441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13213441 is an equidigital number, since it uses as much as digits as its factorization.

13213441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 13213441 is about 3635.0297110203. The cubic root of 13213441 is about 236.4133388889.

Adding to 13213441 its reverse (14431231), we get a palindrome (27644672).

The spelling of 13213441 in words is "thirteen million, two hundred thirteen thousand, four hundred forty-one".