13719149 has 2 divisors, whose sum is σ = 13719150. Its totient is φ = 13719148.

The previous prime is 13719113. The next prime is 13719151. The reversal of 13719149 is 94191731.

It is a happy number.

13719149 is digitally balanced in base 3, 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., 12075625 + 1643524 = 3475^2 + 1282^2 .

It is an emirp because it is prime and its reverse (94191731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13719149 is a prime.

Together with 13719151, 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 (13719169) 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, 6859574 + 6859575.

It is an arithmetic number, because the mean of its divisors is an integer number (6859575).

Almost surely, 2^13719149 is an apocalyptic number.

It is an amenable number.

13719149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13719149 is an equidigital number, since it uses as much as digits as its factorization.

13719149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 35.

The square root of 13719149 is about 3703.9369595067. The cubic root of 13719149 is about 239.3916828081.

The spelling of 13719149 in words is "thirteen million, seven hundred nineteen thousand, one hundred forty-nine".