14418421 has 2 divisors, whose sum is σ = 14418422. Its totient is φ = 14418420.

The previous prime is 14418413. The next prime is 14418427. The reversal of 14418421 is 12481441.

14418421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13912900 + 505521 = 3730^2 + 711^2 .

It is a cyclic number.

It is not a de Polignac number, because 14418421 - 2³ = 14418413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14418427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7209210 + 7209211.

It is an arithmetic number, because the mean of its divisors is an integer number (7209211).

Almost surely, 2^14418421 is an apocalyptic number.

It is an amenable number.

14418421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14418421 is an equidigital number, since it uses as much as digits as its factorization.

14418421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1024, while the sum is 25.

The square root of 14418421 is about 3797.1595963299. The cubic root of 14418421 is about 243.3917765837.

Adding to 14418421 its reverse (12481441), we get a palindrome (26899862).

The spelling of 14418421 in words is "fourteen million, four hundred eighteen thousand, four hundred twenty-one".