14221615 has 8 divisors (see below), whose sum is σ = 17217648. Its totient is φ = 11276160.

The previous prime is 14221583. The next prime is 14221631. The reversal of 14221615 is 51612241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14221615 - 2⁵ = 14221583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12021 + ... + 13150.

It is an arithmetic number, because the mean of its divisors is an integer number (2152206).

Almost surely, 2^14221615 is an apocalyptic number.

14221615 is a deficient number, since it is larger than the sum of its proper divisors (2996033).

14221615 is a wasteful number, since it uses less digits than its factorization.

14221615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25289.

The product of its digits is 480, while the sum is 22.

The square root of 14221615 is about 3771.1556584156. The cubic root of 14221615 is about 242.2792975494.

Adding to 14221615 its reverse (51612241), we get a palindrome (65833856).

The spelling of 14221615 in words is "fourteen million, two hundred twenty-one thousand, six hundred fifteen".