14299991 has 2 divisors, whose sum is σ = 14299992. Its totient is φ = 14299990.

The previous prime is 14299973. The next prime is 14300017. The reversal of 14299991 is 19999241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14299991 - 2¹⁸ = 14037847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14299931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7149995 + 7149996.

It is an arithmetic number, because the mean of its divisors is an integer number (7149996).

Almost surely, 2^14299991 is an apocalyptic number.

14299991 is a deficient number, since it is larger than the sum of its proper divisors (1).

14299991 is an equidigital number, since it uses as much as digits as its factorization.

14299991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 44.

The square root of 14299991 is about 3781.5328902444. The cubic root of 14299991 is about 242.7235533706.

The spelling of 14299991 in words is "fourteen million, two hundred ninety-nine thousand, nine hundred ninety-one".