14540221 has 8 divisors (see below), whose sum is σ = 14745024. Its totient is φ = 14337120.

The previous prime is 14540167. The next prime is 14540233. The reversal of 14540221 is 12204541.

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 14540221 - 2⁷ = 14540093 is a prime.

It is a super-2 number, since 2×14540221² = 422836053457682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14540261) 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, 28656 + ... + 29158.

It is an arithmetic number, because the mean of its divisors is an integer number (1843128).

Almost surely, 2^14540221 is an apocalyptic number.

It is an amenable number.

14540221 is a deficient number, since it is larger than the sum of its proper divisors (204803).

14540221 is a wasteful number, since it uses less digits than its factorization.

14540221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 14540221 is about 3813.1641716559. The cubic root of 14540221 is about 244.0752086084.

Adding to 14540221 its reverse (12204541), we get a palindrome (26744762).

The spelling of 14540221 in words is "fourteen million, five hundred forty thousand, two hundred twenty-one".