14305221 has 16 divisors (see below), whose sum is σ = 24220800. Its totient is φ = 8174304.

The previous prime is 14305219. The next prime is 14305223. The reversal of 14305221 is 12250341.

14305221 is a `hidden beast` number, since 143 + 0 + 522 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (14305219) and next prime (14305223).

It is not a de Polignac number, because 14305221 - 2¹ = 14305219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14305194 and 14305203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14305223) 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 15 ways as a sum of consecutive naturals, for example, 37656 + ... + 38033.

It is an arithmetic number, because the mean of its divisors is an integer number (1513800).

Almost surely, 2^14305221 is an apocalyptic number.

It is an amenable number.

14305221 is a deficient number, since it is larger than the sum of its proper divisors (9915579).

14305221 is an equidigital number, since it uses as much as digits as its factorization.

14305221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75705 (or 75699 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 14305221 is about 3782.2243455406. The cubic root of 14305221 is about 242.7531405561.

Adding to 14305221 its reverse (12250341), we get a palindrome (26555562).

The spelling of 14305221 in words is "fourteen million, three hundred five thousand, two hundred twenty-one".