14726221 has 2 divisors, whose sum is σ = 14726222. Its totient is φ = 14726220.

The previous prime is 14726203. The next prime is 14726237. The reversal of 14726221 is 12262741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14523721 + 202500 = 3811^2 + 450^2 .

It is an emirp because it is prime and its reverse (12262741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14726221 - 2⁵ = 14726189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14726021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7363110 + 7363111.

It is an arithmetic number, because the mean of its divisors is an integer number (7363111).

Almost surely, 2^14726221 is an apocalyptic number.

It is an amenable number.

14726221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14726221 is an equidigital number, since it uses as much as digits as its factorization.

14726221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 25.

The square root of 14726221 is about 3837.4758631163. The cubic root of 14726221 is about 245.1115471508. Note that the first 3 decimals are identical.

Adding to 14726221 its reverse (12262741), we get a palindrome (26988962).

The spelling of 14726221 in words is "fourteen million, seven hundred twenty-six thousand, two hundred twenty-one".