13943230549 has 2 divisors, whose sum is σ = 13943230550. Its totient is φ = 13943230548.

The previous prime is 13943230517. The next prime is 13943230571. The reversal of 13943230549 is 94503234931.

13943230549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13850936100 + 92294449 = 117690^2 + 9607^2 .

It is a cyclic number.

It is not a de Polignac number, because 13943230549 - 2⁵ = 13943230517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13943230589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971615274 + 6971615275.

It is an arithmetic number, because the mean of its divisors is an integer number (6971615275).

Almost surely, 2^13943230549 is an apocalyptic number.

It is an amenable number.

13943230549 is a deficient number, since it is larger than the sum of its proper divisors (1).

13943230549 is an equidigital number, since it uses as much as digits as its factorization.

13943230549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 13943230549 in words is "thirteen billion, nine hundred forty-three million, two hundred thirty thousand, five hundred forty-nine".