14551221 has 8 divisors (see below), whose sum is σ = 19447200. Its totient is φ = 9678032.

The previous prime is 14551219. The next prime is 14551267. The reversal of 14551221 is 12215541.

14551221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14551221 - 2¹ = 14551219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14551291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4146 + ... + 6803.

It is an arithmetic number, because the mean of its divisors is an integer number (2430900).

Almost surely, 2^14551221 is an apocalyptic number.

It is an amenable number.

14551221 is a deficient number, since it is larger than the sum of its proper divisors (4895979).

14551221 is a wasteful number, since it uses less digits than its factorization.

14551221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395.

The product of its digits is 400, while the sum is 21.

The square root of 14551221 is about 3814.6062706392. The cubic root of 14551221 is about 244.1367425318.

Adding to 14551221 its reverse (12215541), we get a palindrome (26766762).

The spelling of 14551221 in words is "fourteen million, five hundred fifty-one thousand, two hundred twenty-one".