14550721 has 8 divisors (see below), whose sum is σ = 15120000. Its totient is φ = 13986000.

The previous prime is 14550709. The next prime is 14550733. The reversal of 14550721 is 12705541.

It is an interprime number because it is at equal distance from previous prime (14550709) and next prime (14550733).

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 14550721 - 2⁵ = 14550689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14550791) 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, 6280 + ... + 8278.

It is an arithmetic number, because the mean of its divisors is an integer number (1890000).

Almost surely, 2^14550721 is an apocalyptic number.

It is an amenable number.

14550721 is a deficient number, since it is larger than the sum of its proper divisors (569279).

14550721 is a wasteful number, since it uses less digits than its factorization.

14550721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 14550721 is about 3814.5407325129. The cubic root of 14550721 is about 244.1339462082.

The spelling of 14550721 in words is "fourteen million, five hundred fifty thousand, seven hundred twenty-one".