14181421 has 4 divisors (see below), whose sum is σ = 14393152. Its totient is φ = 13969692.

The previous prime is 14181379. The next prime is 14181437. The reversal of 14181421 is 12418141.

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.

It is a cyclic number.

It is not a de Polignac number, because 14181421 - 2⁹ = 14180909 is a prime.

It is a super-2 number, since 2×14181421² = 402225403158482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14181392 and 14181401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14181481) 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 in 3 ways as a sum of consecutive naturals, for example, 105765 + ... + 105898.

It is an arithmetic number, because the mean of its divisors is an integer number (3598288).

Almost surely, 2^14181421 is an apocalyptic number.

It is an amenable number.

14181421 is a deficient number, since it is larger than the sum of its proper divisors (211731).

14181421 is an equidigital number, since it uses as much as digits as its factorization.

14181421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211730.

The product of its digits is 256, while the sum is 22.

The square root of 14181421 is about 3765.8227520689. The cubic root of 14181421 is about 242.0508339812.

Adding to 14181421 its reverse (12418141), we get a palindrome (26599562).

The spelling of 14181421 in words is "fourteen million, one hundred eighty-one thousand, four hundred twenty-one".