14151221 has 8 divisors (see below), whose sum is σ = 16694784. Its totient is φ = 11738160.

The previous prime is 14151199. The next prime is 14151281. The reversal of 14151221 is 12215141.

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

It is not a de Polignac number, because 14151221 - 2¹⁰ = 14150197 is a prime.

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 14151221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14151281) 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, 32390 + ... + 32823.

It is an arithmetic number, because the mean of its divisors is an integer number (2086848).

Almost surely, 2^14151221 is an apocalyptic number.

It is an amenable number.

14151221 is a deficient number, since it is larger than the sum of its proper divisors (2543563).

14151221 is an equidigital number, since it uses as much as digits as its factorization.

14151221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65251.

The product of its digits is 80, while the sum is 17.

The square root of 14151221 is about 3761.8108671224. The cubic root of 14151221 is about 241.8788923428.

Adding to 14151221 its reverse (12215141), we get a palindrome (26366362).

The spelling of 14151221 in words is "fourteen million, one hundred fifty-one thousand, two hundred twenty-one".