14561221 has 4 divisors (see below), whose sum is σ = 14611212. Its totient is φ = 14511232.

The previous prime is 14561207. The next prime is 14561233. The reversal of 14561221 is 12216541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6180196 + 8381025 = 2486^2 + 2895^2 .

It is a cyclic number.

It is not a de Polignac number, because 14561221 - 2¹³ = 14553029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14561192 and 14561201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14561251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24556 + ... + 25141.

It is an arithmetic number, because the mean of its divisors is an integer number (3652803).

Almost surely, 2^14561221 is an apocalyptic number.

It is an amenable number.

14561221 is a deficient number, since it is larger than the sum of its proper divisors (49991).

14561221 is an equidigital number, since it uses as much as digits as its factorization.

14561221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49990.

The product of its digits is 480, while the sum is 22.

The square root of 14561221 is about 3815.9167967868. The cubic root of 14561221 is about 244.1926555575.

Adding to 14561221 its reverse (12216541), we get a palindrome (26777762).

The spelling of 14561221 in words is "fourteen million, five hundred sixty-one thousand, two hundred twenty-one".