14225721 has 8 divisors (see below), whose sum is σ = 19042464. Its totient is φ = 9446400.

The previous prime is 14225693. The next prime is 14225741. The reversal of 14225721 is 12752241.

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

It is not a de Polignac number, because 14225721 - 2⁶ = 14225657 is a prime.

It is a super-2 number, since 2×14225721² = 404742275939682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14225691 and 14225700.

It is not an unprimeable number, because it can be changed into a prime (14225741) by changing a digit.

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, 8455 + ... + 9996.

It is an arithmetic number, because the mean of its divisors is an integer number (2380308).

Almost surely, 2^14225721 is an apocalyptic number.

It is an amenable number.

14225721 is a deficient number, since it is larger than the sum of its proper divisors (4816743).

14225721 is a wasteful number, since it uses less digits than its factorization.

14225721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18711.

The product of its digits is 1120, while the sum is 24.

The square root of 14225721 is about 3771.7000145823. The cubic root of 14225721 is about 242.3026118981.

Adding to 14225721 its reverse (12752241), we get a palindrome (26977962).

The spelling of 14225721 in words is "fourteen million, two hundred twenty-five thousand, seven hundred twenty-one".