14907221 has 12 divisors (see below), whose sum is σ = 17565120. Its totient is φ = 12612600.

The previous prime is 14907209. The next prime is 14907227. The reversal of 14907221 is 12270941.

It is a de Polignac number, because none of the positive numbers 2^k-14907221 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 (14907227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1946 + ... + 5796.

It is an arithmetic number, because the mean of its divisors is an integer number (1463760).

Almost surely, 2^14907221 is an apocalyptic number.

It is an amenable number.

14907221 is a deficient number, since it is larger than the sum of its proper divisors (2657899).

14907221 is an equidigital number, since it uses as much as digits as its factorization.

14907221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944 (or 3937 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 14907221 is about 3860.9870499653. The cubic root of 14907221 is about 246.1116828249. Note that the first 3 decimals are identical.

The spelling of 14907221 in words is "fourteen million, nine hundred seven thousand, two hundred twenty-one".