14211391 has 2 divisors, whose sum is σ = 14211392. Its totient is φ = 14211390.

The previous prime is 14211349. The next prime is 14211403. The reversal of 14211391 is 19311241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14211391 - 2¹⁵ = 14178623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14211091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7105695 + 7105696.

It is an arithmetic number, because the mean of its divisors is an integer number (7105696).

Almost surely, 2^14211391 is an apocalyptic number.

14211391 is a deficient number, since it is larger than the sum of its proper divisors (1).

14211391 is an equidigital number, since it uses as much as digits as its factorization.

14211391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 22.

The square root of 14211391 is about 3769.7998620616. The cubic root of 14211391 is about 242.2212249754.

The spelling of 14211391 in words is "fourteen million, two hundred eleven thousand, three hundred ninety-one".