13971299 has 2 divisors, whose sum is σ = 13971300. Its totient is φ = 13971298.

The previous prime is 13971271. The next prime is 13971313. The reversal of 13971299 is 99217931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13971299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13971499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985649 + 6985650.

It is an arithmetic number, because the mean of its divisors is an integer number (6985650).

Almost surely, 2^13971299 is an apocalyptic number.

13971299 is a deficient number, since it is larger than the sum of its proper divisors (1).

13971299 is an equidigital number, since it uses as much as digits as its factorization.

13971299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 41.

The square root of 13971299 is about 3737.8200866280. The cubic root of 13971299 is about 240.8494149479.

The spelling of 13971299 in words is "thirteen million, nine hundred seventy-one thousand, two hundred ninety-nine".