13943243 has 2 divisors, whose sum is σ = 13943244. Its totient is φ = 13943242.

The previous prime is 13943233. The next prime is 13943291. The reversal of 13943243 is 34234931.

13943243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (34234931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13943243 - 2⁴ = 13943227 is a prime.

It is not a weakly prime, because it can be changed into another prime (13943233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971621 + 6971622.

It is an arithmetic number, because the mean of its divisors is an integer number (6971622).

Almost surely, 2^13943243 is an apocalyptic number.

13943243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13943243 is an equidigital number, since it uses as much as digits as its factorization.

13943243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

The square root of 13943243 is about 3734.0652109999. The cubic root of 13943243 is about 240.6880889951.

The spelling of 13943243 in words is "thirteen million, nine hundred forty-three thousand, two hundred forty-three".