14415421 has 4 divisors (see below), whose sum is σ = 14457312. Its totient is φ = 14373532.

The previous prime is 14415413. The next prime is 14415431. The reversal of 14415421 is 12451441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14415421 - 2³ = 14415413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14415392 and 14415401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14415431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20425 + ... + 21118.

It is an arithmetic number, because the mean of its divisors is an integer number (3614328).

Almost surely, 2^14415421 is an apocalyptic number.

It is an amenable number.

14415421 is a deficient number, since it is larger than the sum of its proper divisors (41891).

14415421 is an equidigital number, since it uses as much as digits as its factorization.

14415421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41890.

The product of its digits is 640, while the sum is 22.

The square root of 14415421 is about 3796.7645436608. The cubic root of 14415421 is about 243.3748948003.

Adding to 14415421 its reverse (12451441), we get a palindrome (26866862).

The spelling of 14415421 in words is "fourteen million, four hundred fifteen thousand, four hundred twenty-one".