14212381 has 4 divisors (see below), whose sum is σ = 14284000. Its totient is φ = 14140764.

The previous prime is 14212379. The next prime is 14212397. The reversal of 14212381 is 18321241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18321241 = 2389 ⋅7669.

It is a cyclic number.

It is not a de Polignac number, because 14212381 - 2¹ = 14212379 is a prime.

It is a super-2 number, since 2×14212381² = 403983547378322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14212351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35511 + ... + 35908.

It is an arithmetic number, because the mean of its divisors is an integer number (3571000).

Almost surely, 2^14212381 is an apocalyptic number.

It is an amenable number.

14212381 is a deficient number, since it is larger than the sum of its proper divisors (71619).

14212381 is an equidigital number, since it uses as much as digits as its factorization.

14212381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71618.

The product of its digits is 384, while the sum is 22.

The square root of 14212381 is about 3769.9311664804. The cubic root of 14212381 is about 242.2268494177.

The spelling of 14212381 in words is "fourteen million, two hundred twelve thousand, three hundred eighty-one".