14381111 has 2 divisors, whose sum is σ = 14381112. Its totient is φ = 14381110.

The previous prime is 14381093. The next prime is 14381113. The reversal of 14381111 is 11118341.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14381111 is a prime.

Together with 14381113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14381113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7190555 + 7190556.

It is an arithmetic number, because the mean of its divisors is an integer number (7190556).

Almost surely, 2^14381111 is an apocalyptic number.

14381111 is a deficient number, since it is larger than the sum of its proper divisors (1).

14381111 is an equidigital number, since it uses as much as digits as its factorization.

14381111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 20.

The square root of 14381111 is about 3792.2435312095. The cubic root of 14381111 is about 243.1816566898.

Adding to 14381111 its reverse (11118341), we get a palindrome (25499452).

The spelling of 14381111 in words is "fourteen million, three hundred eighty-one thousand, one hundred eleven".