14393381 has 2 divisors, whose sum is σ = 14393382. Its totient is φ = 14393380.

The previous prime is 14393321. The next prime is 14393413. The reversal of 14393381 is 18339341.

It is a happy number.

It is an a-pointer prime, because the next prime (14393413) can be obtained adding 14393381 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12716356 + 1677025 = 3566^2 + 1295^2 .

It is a cyclic number.

It is not a de Polignac number, because 14393381 - 2¹⁴ = 14376997 is a prime.

It is a super-2 number, since 2×14393381² = 414338833222322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14393321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7196690 + 7196691.

It is an arithmetic number, because the mean of its divisors is an integer number (7196691).

Almost surely, 2^14393381 is an apocalyptic number.

It is an amenable number.

14393381 is a deficient number, since it is larger than the sum of its proper divisors (1).

14393381 is an equidigital number, since it uses as much as digits as its factorization.

14393381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 14393381 is about 3793.8609621334. The cubic root of 14393381 is about 243.2507980962.

The spelling of 14393381 in words is "fourteen million, three hundred ninety-three thousand, three hundred eighty-one".