14226521 has 2 divisors, whose sum is σ = 14226522. Its totient is φ = 14226520.

The previous prime is 14226517. The next prime is 14226539. The reversal of 14226521 is 12562241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12880921 + 1345600 = 3589^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 14226521 - 2² = 14226517 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14226721) 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, 7113260 + 7113261.

It is an arithmetic number, because the mean of its divisors is an integer number (7113261).

Almost surely, 2^14226521 is an apocalyptic number.

It is an amenable number.

14226521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14226521 is an equidigital number, since it uses as much as digits as its factorization.

14226521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 14226521 is about 3771.8060660644. The cubic root of 14226521 is about 242.3071538695.

Adding to 14226521 its reverse (12562241), we get a palindrome (26788762).

The spelling of 14226521 in words is "fourteen million, two hundred twenty-six thousand, five hundred twenty-one".