14090221 has 2 divisors, whose sum is σ = 14090222. Its totient is φ = 14090220.

The previous prime is 14090179. The next prime is 14090233. The reversal of 14090221 is 12209041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8185321 + 5904900 = 2861^2 + 2430^2 .

It is a cyclic number.

It is not a de Polignac number, because 14090221 - 2⁹ = 14089709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14090521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7045110 + 7045111.

It is an arithmetic number, because the mean of its divisors is an integer number (7045111).

Almost surely, 2^14090221 is an apocalyptic number.

It is an amenable number.

14090221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14090221 is an equidigital number, since it uses as much as digits as its factorization.

14090221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 14090221 is about 3753.6943136063. The cubic root of 14090221 is about 241.5308454929.

Adding to 14090221 its reverse (12209041), we get a palindrome (26299262).

The spelling of 14090221 in words is "fourteen million, ninety thousand, two hundred twenty-one".