13543349 has 2 divisors, whose sum is σ = 13543350. Its totient is φ = 13543348.

The previous prime is 13543307. The next prime is 13543351. The reversal of 13543349 is 94334531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13010449 + 532900 = 3607^2 + 730^2 .

It is an emirp because it is prime and its reverse (94334531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13543349 - 2¹⁶ = 13477813 is a prime.

Together with 13543351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13543399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6771674 + 6771675.

It is an arithmetic number, because the mean of its divisors is an integer number (6771675).

Almost surely, 2^13543349 is an apocalyptic number.

It is an amenable number.

13543349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13543349 is an equidigital number, since it uses as much as digits as its factorization.

13543349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 13543349 is about 3680.1289379586. The cubic root of 13543349 is about 238.3647456709.

The spelling of 13543349 in words is "thirteen million, five hundred forty-three thousand, three hundred forty-nine".