14237221 has 2 divisors, whose sum is σ = 14237222. Its totient is φ = 14237220.

The previous prime is 14237219. The next prime is 14237227. The reversal of 14237221 is 12273241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11464996 + 2772225 = 3386^2 + 1665^2 .

It is a cyclic number.

It is not a de Polignac number, because 14237221 - 2¹ = 14237219 is a prime.

Together with 14237219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 14237192 and 14237201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14237227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7118610 + 7118611.

It is an arithmetic number, because the mean of its divisors is an integer number (7118611).

Almost surely, 2^14237221 is an apocalyptic number.

It is an amenable number.

14237221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14237221 is an equidigital number, since it uses as much as digits as its factorization.

14237221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 22.

The square root of 14237221 is about 3773.2242180925. The cubic root of 14237221 is about 242.3678863755.

The spelling of 14237221 in words is "fourteen million, two hundred thirty-seven thousand, two hundred twenty-one".