14242121 has 2 divisors, whose sum is σ = 14242122. Its totient is φ = 14242120.

The previous prime is 14242117. The next prime is 14242127. The reversal of 14242121 is 12124241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13801225 + 440896 = 3715^2 + 664^2 .

It is an emirp because it is prime and its reverse (12124241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14242121 - 2² = 14242117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14242121.

It is not a weakly prime, because it can be changed into another prime (14242127) 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, 7121060 + 7121061.

It is an arithmetic number, because the mean of its divisors is an integer number (7121061).

Almost surely, 2^14242121 is an apocalyptic number.

It is an amenable number.

14242121 is a deficient number, since it is larger than the sum of its proper divisors (1).

14242121 is an equidigital number, since it uses as much as digits as its factorization.

14242121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128, while the sum is 17.

The square root of 14242121 is about 3773.8734742967. The cubic root of 14242121 is about 242.3956882999.

Adding to 14242121 its reverse (12124241), we get a palindrome (26366362).

The spelling of 14242121 in words is "fourteen million, two hundred forty-two thousand, one hundred twenty-one".