13944520159 has 2 divisors, whose sum is σ = 13944520160. Its totient is φ = 13944520158.

The previous prime is 13944520153. The next prime is 13944520217. The reversal of 13944520159 is 95102544931.

It is a weak prime.

It is an emirp because it is prime and its reverse (95102544931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13944520159 - 2²³ = 13936131551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13944520153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6972260079 + 6972260080.

It is an arithmetic number, because the mean of its divisors is an integer number (6972260080).

Almost surely, 2^13944520159 is an apocalyptic number.

13944520159 is a deficient number, since it is larger than the sum of its proper divisors (1).

13944520159 is an equidigital number, since it uses as much as digits as its factorization.

13944520159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 13944520159 in words is "thirteen billion, nine hundred forty-four million, five hundred twenty thousand, one hundred fifty-nine".