14107421 has 2 divisors, whose sum is σ = 14107422. Its totient is φ = 14107420.

The previous prime is 14107393. The next prime is 14107439. The reversal of 14107421 is 12470141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14100025 + 7396 = 3755^2 + 86^2 .

It is an emirp because it is prime and its reverse (12470141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14107421 - 2¹⁰ = 14106397 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14107393 and 14107402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14107921) 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, 7053710 + 7053711.

It is an arithmetic number, because the mean of its divisors is an integer number (7053711).

Almost surely, 2^14107421 is an apocalyptic number.

It is an amenable number.

14107421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14107421 is an equidigital number, since it uses as much as digits as its factorization.

14107421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 14107421 is about 3755.9846911296. The cubic root of 14107421 is about 241.6290848152.

Adding to 14107421 its reverse (12470141), we get a palindrome (26577562).

The spelling of 14107421 in words is "fourteen million, one hundred seven thousand, four hundred twenty-one".