14381911 has 2 divisors, whose sum is σ = 14381912. Its totient is φ = 14381910.

The previous prime is 14381903. The next prime is 14381933. The reversal of 14381911 is 11918341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14381911 - 2³ = 14381903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14381911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14381951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7190955 + 7190956.

It is an arithmetic number, because the mean of its divisors is an integer number (7190956).

Almost surely, 2^14381911 is an apocalyptic number.

14381911 is a deficient number, since it is larger than the sum of its proper divisors (1).

14381911 is an equidigital number, since it uses as much as digits as its factorization.

14381911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 28.

The square root of 14381911 is about 3792.3490082006. The cubic root of 14381911 is about 243.1861658852.

The spelling of 14381911 in words is "fourteen million, three hundred eighty-one thousand, nine hundred eleven".