13438213 has 2 divisors, whose sum is σ = 13438214. Its totient is φ = 13438212.

The previous prime is 13438207. The next prime is 13438219. The reversal of 13438213 is 31283431.

It is a balanced prime because it is at equal distance from previous prime (13438207) and next prime (13438219).

It can be written as a sum of positive squares in only one way, i.e., 10771524 + 2666689 = 3282^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 13438213 - 2⁵ = 13438181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13438219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6719106 + 6719107.

It is an arithmetic number, because the mean of its divisors is an integer number (6719107).

Almost surely, 2^13438213 is an apocalyptic number.

It is an amenable number.

13438213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13438213 is an equidigital number, since it uses as much as digits as its factorization.

13438213 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 13438213 is about 3665.8168257566. The cubic root of 13438213 is about 237.7463401548.

The spelling of 13438213 in words is "thirteen million, four hundred thirty-eight thousand, two hundred thirteen".