14570221 has 2 divisors, whose sum is σ = 14570222. Its totient is φ = 14570220.

The previous prime is 14570219. The next prime is 14570239. The reversal of 14570221 is 12207541.

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., 12152196 + 2418025 = 3486^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 14570221 - 2¹ = 14570219 is a prime.

Together with 14570219, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 14570192 and 14570201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14570251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7285110 + 7285111.

It is an arithmetic number, because the mean of its divisors is an integer number (7285111).

Almost surely, 2^14570221 is an apocalyptic number.

It is an amenable number.

14570221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14570221 is an equidigital number, since it uses as much as digits as its factorization.

14570221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 14570221 is about 3817.0958856178. The cubic root of 14570221 is about 244.2429553976.

Adding to 14570221 its reverse (12207541), we get a palindrome (26777762).

The spelling of 14570221 in words is "fourteen million, five hundred seventy thousand, two hundred twenty-one".