14135621 has 4 divisors (see below), whose sum is σ = 14143200. Its totient is φ = 14128044.

The previous prime is 14135609. The next prime is 14135629. The reversal of 14135621 is 12653141.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 14135621 - 2¹⁰ = 14134597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14135629) 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 in 3 ways as a sum of consecutive naturals, for example, 1190 + ... + 5448.

It is an arithmetic number, because the mean of its divisors is an integer number (3535800).

Almost surely, 2^14135621 is an apocalyptic number.

It is an amenable number.

14135621 is a deficient number, since it is larger than the sum of its proper divisors (7579).

14135621 is an equidigital number, since it uses as much as digits as its factorization.

14135621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578.

The product of its digits is 720, while the sum is 23.

The square root of 14135621 is about 3759.7368258962. The cubic root of 14135621 is about 241.7899789760.

Adding to 14135621 its reverse (12653141), we get a palindrome (26788762).

The spelling of 14135621 in words is "fourteen million, one hundred thirty-five thousand, six hundred twenty-one".