14242909 has 2 divisors, whose sum is σ = 14242910. Its totient is φ = 14242908.

The previous prime is 14242901. The next prime is 14242939. The reversal of 14242909 is 90924241.

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., 14100025 + 142884 = 3755^2 + 378^2 .

It is an emirp because it is prime and its reverse (90924241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14242909 - 2³ = 14242901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14242901) 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, 7121454 + 7121455.

It is an arithmetic number, because the mean of its divisors is an integer number (7121455).

Almost surely, 2^14242909 is an apocalyptic number.

It is an amenable number.

14242909 is a deficient number, since it is larger than the sum of its proper divisors (1).

14242909 is an equidigital number, since it uses as much as digits as its factorization.

14242909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 14242909 is about 3773.9778748689. The cubic root of 14242909 is about 242.4001587080.

It can be divided in two parts, 14242 and 909, that added together give a palindrome (15151).

The spelling of 14242909 in words is "fourteen million, two hundred forty-two thousand, nine hundred nine".