14219791 has 2 divisors, whose sum is σ = 14219792. Its totient is φ = 14219790.

The previous prime is 14219789. The next prime is 14219801. The reversal of 14219791 is 19791241.

It is a weak prime.

It is an emirp because it is prime and its reverse (19791241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14219791 - 2¹ = 14219789 is a prime.

Together with 14219789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14214791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7109895 + 7109896.

It is an arithmetic number, because the mean of its divisors is an integer number (7109896).

Almost surely, 2^14219791 is an apocalyptic number.

14219791 is a deficient number, since it is larger than the sum of its proper divisors (1).

14219791 is an equidigital number, since it uses as much as digits as its factorization.

14219791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 34.

The square root of 14219791 is about 3770.9138149791. The cubic root of 14219791 is about 242.2689392243.

The spelling of 14219791 in words is "fourteen million, two hundred nineteen thousand, seven hundred ninety-one".