14221505 has 8 divisors (see below), whose sum is σ = 17527272. Its totient is φ = 11069568.

The previous prime is 14221499. The next prime is 14221511. The reversal of 14221505 is 50512241.

It is an interprime number because it is at equal distance from previous prime (14221499) and next prime (14221511).

It can be written as a sum of positive squares in 4 ways, for example, as 8708401 + 5513104 = 2951^2 + 2348^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 14221505 - 2⁴ = 14221489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38252 + ... + 38621.

It is an arithmetic number, because the mean of its divisors is an integer number (2190909).

Almost surely, 2^14221505 is an apocalyptic number.

It is an amenable number.

14221505 is a deficient number, since it is larger than the sum of its proper divisors (3305767).

14221505 is an equidigital number, since it uses as much as digits as its factorization.

14221505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76915.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 14221505 is about 3771.1410739987. The cubic root of 14221505 is about 242.2786728948.

Adding to 14221505 its reverse (50512241), we get a palindrome (64733746).

The spelling of 14221505 in words is "fourteen million, two hundred twenty-one thousand, five hundred five".