14891911 has 2 divisors, whose sum is σ = 14891912. Its totient is φ = 14891910.

The previous prime is 14891909. The next prime is 14891917. The reversal of 14891911 is 11919841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14891911 - 2¹ = 14891909 is a prime.

Together with 14891909, 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 (14891917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7445955 + 7445956.

It is an arithmetic number, because the mean of its divisors is an integer number (7445956).

Almost surely, 2^14891911 is an apocalyptic number.

14891911 is a deficient number, since it is larger than the sum of its proper divisors (1).

14891911 is an equidigital number, since it uses as much as digits as its factorization.

14891911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 34.

The square root of 14891911 is about 3859.0038870154. The cubic root of 14891911 is about 246.0274001692.

The spelling of 14891911 in words is "fourteen million, eight hundred ninety-one thousand, nine hundred eleven".