14111381 has 2 divisors, whose sum is σ = 14111382. Its totient is φ = 14111380.

The previous prime is 14111369. The next prime is 14111389. The reversal of 14111381 is 18311141.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9205156 + 4906225 = 3034^2 + 2215^2 .

It is an emirp because it is prime and its reverse (18311141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14111381 - 2²² = 9917077 is a prime.

It is a super-2 number, since 2×14111381² = 398262147454322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14111389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7055690 + 7055691.

It is an arithmetic number, because the mean of its divisors is an integer number (7055691).

Almost surely, 2^14111381 is an apocalyptic number.

It is an amenable number.

14111381 is a deficient number, since it is larger than the sum of its proper divisors (1).

14111381 is an equidigital number, since it uses as much as digits as its factorization.

14111381 is an odious number, because the sum of its binary digits is odd.

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

The square root of 14111381 is about 3756.5118128391. The cubic root of 14111381 is about 241.6516913960.

The spelling of 14111381 in words is "fourteen million, one hundred eleven thousand, three hundred eighty-one".