14431221 has 48 divisors (see below), whose sum is σ = 25229568. Its totient is φ = 7776000.

The previous prime is 14431201. The next prime is 14431229. The reversal of 14431221 is 12213441.

14431221 is a `hidden beast` number, since 1 + 443 + 1 + 221 = 666.

It is not a de Polignac number, because 14431221 - 2¹⁴ = 14414837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14431194 and 14431203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14431229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95496 + ... + 95646.

It is an arithmetic number, because the mean of its divisors is an integer number (525616).

Almost surely, 2^14431221 is an apocalyptic number.

It is an amenable number.

14431221 is a deficient number, since it is larger than the sum of its proper divisors (10798347).

14431221 is a wasteful number, since it uses less digits than its factorization.

14431221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 239 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 14431221 is about 3798.8446927981. The cubic root of 14431221 is about 243.4637792273.

Adding to 14431221 its reverse (12213441), we get a palindrome (26644662).

The spelling of 14431221 in words is "fourteen million, four hundred thirty-one thousand, two hundred twenty-one".