13443253 has 2 divisors, whose sum is σ = 13443254. Its totient is φ = 13443252.

The previous prime is 13443239. The next prime is 13443259. The reversal of 13443253 is 35234431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8162449 + 5280804 = 2857^2 + 2298^2 .

It is an emirp because it is prime and its reverse (35234431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13443253 - 2¹³ = 13435061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13443259) 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, 6721626 + 6721627.

It is an arithmetic number, because the mean of its divisors is an integer number (6721627).

Almost surely, 2^13443253 is an apocalyptic number.

It is an amenable number.

13443253 is a deficient number, since it is larger than the sum of its proper divisors (1).

13443253 is an equidigital number, since it uses as much as digits as its factorization.

13443253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 25.

The square root of 13443253 is about 3666.5041933700. The cubic root of 13443253 is about 237.7760586843.

Adding to 13443253 its reverse (35234431), we get a palindrome (48677684).

The spelling of 13443253 in words is "thirteen million, four hundred forty-three thousand, two hundred fifty-three".