14042321 has 2 divisors, whose sum is σ = 14042322. Its totient is φ = 14042320.

The previous prime is 14042317. The next prime is 14042339. The reversal of 14042321 is 12324041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11971600 + 2070721 = 3460^2 + 1439^2 .

It is an emirp because it is prime and its reverse (12324041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14042321 - 2² = 14042317 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14042321.

It is not a weakly prime, because it can be changed into another prime (14042341) 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, 7021160 + 7021161.

It is an arithmetic number, because the mean of its divisors is an integer number (7021161).

Almost surely, 2^14042321 is an apocalyptic number.

It is an amenable number.

14042321 is a deficient number, since it is larger than the sum of its proper divisors (1).

14042321 is an equidigital number, since it uses as much as digits as its factorization.

14042321 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 17.

The square root of 14042321 is about 3747.3085007776. The cubic root of 14042321 is about 241.2568383790.

Adding to 14042321 its reverse (12324041), we get a palindrome (26366362).

The spelling of 14042321 in words is "fourteen million, forty-two thousand, three hundred twenty-one".