14018321 has 2 divisors, whose sum is σ = 14018322. Its totient is φ = 14018320.

The previous prime is 14018309. The next prime is 14018359. The reversal of 14018321 is 12381041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13608721 + 409600 = 3689^2 + 640^2 .

It is an emirp because it is prime and its reverse (12381041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14018321 - 2¹⁸ = 13756177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₉₁₁₁₈₀ and since 14018321 and 911180 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 14018293 and 14018302.

It is not a weakly prime, because it can be changed into another prime (14018821) 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, 7009160 + 7009161.

It is an arithmetic number, because the mean of its divisors is an integer number (7009161).

Almost surely, 2^14018321 is an apocalyptic number.

It is an amenable number.

14018321 is a deficient number, since it is larger than the sum of its proper divisors (1).

14018321 is an equidigital number, since it uses as much as digits as its factorization.

14018321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 14018321 is about 3744.1048329340. The cubic root of 14018321 is about 241.1193144386.

Adding to 14018321 its reverse (12381041), we get a palindrome (26399362).

The spelling of 14018321 in words is "fourteen million, eighteen thousand, three hundred twenty-one".