14218549 has 2 divisors, whose sum is σ = 14218550. Its totient is φ = 14218548.

The previous prime is 14218543. The next prime is 14218559. The reversal of 14218549 is 94581241.

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., 13950225 + 268324 = 3735^2 + 518^2 .

It is an emirp because it is prime and its reverse (94581241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14218549 - 2¹⁵ = 14185781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14218543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7109274 + 7109275.

It is an arithmetic number, because the mean of its divisors is an integer number (7109275).

Almost surely, 2^14218549 is an apocalyptic number.

It is an amenable number.

14218549 is a deficient number, since it is larger than the sum of its proper divisors (1).

14218549 is an equidigital number, since it uses as much as digits as its factorization.

14218549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

The square root of 14218549 is about 3770.7491298149. The cubic root of 14218549 is about 242.2618855158.

The spelling of 14218549 in words is "fourteen million, two hundred eighteen thousand, five hundred forty-nine".