13538843 has 2 divisors, whose sum is σ = 13538844. Its totient is φ = 13538842.

The previous prime is 13538839. The next prime is 13538879. The reversal of 13538843 is 34883531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13538843 - 2² = 13538839 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13538813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6769421 + 6769422.

It is an arithmetic number, because the mean of its divisors is an integer number (6769422).

Almost surely, 2^13538843 is an apocalyptic number.

13538843 is a deficient number, since it is larger than the sum of its proper divisors (1).

13538843 is an equidigital number, since it uses as much as digits as its factorization.

13538843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 13538843 is about 3679.5166802177. The cubic root of 13538843 is about 238.3383073386.

The spelling of 13538843 in words is "thirteen million, five hundred thirty-eight thousand, eight hundred forty-three".