14436221 has 2 divisors, whose sum is σ = 14436222. Its totient is φ = 14436220.

The previous prime is 14436209. The next prime is 14436239. The reversal of 14436221 is 12263441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12348196 + 2088025 = 3514^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 14436221 - 2¹⁴ = 14419837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14436251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7218110 + 7218111.

It is an arithmetic number, because the mean of its divisors is an integer number (7218111).

Almost surely, 2^14436221 is an apocalyptic number.

It is an amenable number.

14436221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14436221 is an equidigital number, since it uses as much as digits as its factorization.

14436221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 14436221 is about 3799.5027306215. The cubic root of 14436221 is about 243.4918936960.

Adding to 14436221 its reverse (12263441), we get a palindrome (26699662).

The spelling of 14436221 in words is "fourteen million, four hundred thirty-six thousand, two hundred twenty-one".