13919299 has 2 divisors, whose sum is σ = 13919300. Its totient is φ = 13919298.

The previous prime is 13919291. The next prime is 13919303. The reversal of 13919299 is 99291931.

It is a strong prime.

It is an emirp because it is prime and its reverse (99291931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13919299 - 2³ = 13919291 is a prime.

It is not a weakly prime, because it can be changed into another prime (13919291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6959649 + 6959650.

It is an arithmetic number, because the mean of its divisors is an integer number (6959650).

Almost surely, 2^13919299 is an apocalyptic number.

13919299 is a deficient number, since it is larger than the sum of its proper divisors (1).

13919299 is an equidigital number, since it uses as much as digits as its factorization.

13919299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39366, while the sum is 43.

The square root of 13919299 is about 3730.8576761919. The cubic root of 13919299 is about 240.5502363782.

The spelling of 13919299 in words is "thirteen million, nine hundred nineteen thousand, two hundred ninety-nine".