14553221 has 16 divisors (see below), whose sum is σ = 16051200. Its totient is φ = 13145328.

The previous prime is 14553211. The next prime is 14553251. The reversal of 14553221 is 12235541.

It is a cyclic number.

It is not a de Polignac number, because 14553221 - 2¹⁸ = 14291077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14553211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38210 + ... + 38588.

It is an arithmetic number, because the mean of its divisors is an integer number (1003200).

Almost surely, 2^14553221 is an apocalyptic number.

It is an amenable number.

14553221 is a deficient number, since it is larger than the sum of its proper divisors (1497979).

14553221 is a wasteful number, since it uses less digits than its factorization.

14553221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488.

The product of its digits is 1200, while the sum is 23.

The square root of 14553221 is about 3814.8684118853. The cubic root of 14553221 is about 244.1479271858.

Adding to 14553221 its reverse (12235541), we get a palindrome (26788762).

The spelling of 14553221 in words is "fourteen million, five hundred fifty-three thousand, two hundred twenty-one".