14213209 has 2 divisors, whose sum is σ = 14213210. Its totient is φ = 14213208.

The previous prime is 14213191. The next prime is 14213231. The reversal of 14213209 is 90231241.

It is an a-pointer prime, because the next prime (14213231) can be obtained adding 14213209 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13104400 + 1108809 = 3620^2 + 1053^2 .

It is a cyclic number.

It is not a de Polignac number, because 14213209 - 2⁷ = 14213081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14213209.

It is not a weakly prime, because it can be changed into another prime (14213239) 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, 7106604 + 7106605.

It is an arithmetic number, because the mean of its divisors is an integer number (7106605).

Almost surely, 2^14213209 is an apocalyptic number.

It is an amenable number.

14213209 is a deficient number, since it is larger than the sum of its proper divisors (1).

14213209 is an equidigital number, since it uses as much as digits as its factorization.

14213209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 14213209 is about 3770.0409812096. The cubic root of 14213209 is about 242.2315532961.

The spelling of 14213209 in words is "fourteen million, two hundred thirteen thousand, two hundred nine".