14425421 has 2 divisors, whose sum is σ = 14425422. Its totient is φ = 14425420.

The previous prime is 14425417. The next prime is 14425493. The reversal of 14425421 is 12452441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14212900 + 212521 = 3770^2 + 461^2 .

It is an emirp because it is prime and its reverse (12452441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14425421 - 2² = 14425417 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14425121) 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, 7212710 + 7212711.

It is an arithmetic number, because the mean of its divisors is an integer number (7212711).

Almost surely, 2^14425421 is an apocalyptic number.

It is an amenable number.

14425421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14425421 is an equidigital number, since it uses as much as digits as its factorization.

14425421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 23.

The square root of 14425421 is about 3798.0812260930. The cubic root of 14425421 is about 243.4311583068.

Adding to 14425421 its reverse (12452441), we get a palindrome (26877862).

The spelling of 14425421 in words is "fourteen million, four hundred twenty-five thousand, four hundred twenty-one".