14224121 has 4 divisors (see below), whose sum is σ = 15060852. Its totient is φ = 13387392.

The previous prime is 14224117. The next prime is 14224151. The reversal of 14224121 is 12142241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12142241 = 1777 ⋅6833.

It can be written as a sum of positive squares in 2 ways, for example, as 5290000 + 8934121 = 2300^2 + 2989^2 .

It is a cyclic number.

It is not a de Polignac number, because 14224121 - 2² = 14224117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 836713 = 14224121 / (1 + 4 + 2 + 2 + 4 + 1 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14224121.

It is not an unprimeable number, because it can be changed into a prime (14224151) 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 in 3 ways as a sum of consecutive naturals, for example, 418340 + ... + 418373.

It is an arithmetic number, because the mean of its divisors is an integer number (3765213).

Almost surely, 2^14224121 is an apocalyptic number.

It is an amenable number.

14224121 is a deficient number, since it is larger than the sum of its proper divisors (836731).

14224121 is an equidigital number, since it uses as much as digits as its factorization.

14224121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836730.

The product of its digits is 128, while the sum is 17.

The square root of 14224121 is about 3771.4879026718. The cubic root of 14224121 is about 242.2935274443.

Adding to 14224121 its reverse (12142241), we get a palindrome (26366362).

The spelling of 14224121 in words is "fourteen million, two hundred twenty-four thousand, one hundred twenty-one".