14530721 has 4 divisors (see below), whose sum is σ = 14541744. Its totient is φ = 14519700.

The previous prime is 14530717. The next prime is 14530729. The reversal of 14530721 is 12703541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 14530721 - 2² = 14530717 is a prime.

It is a super-2 number, since 2×14530721² = 422283705559682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14530729) 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 3 ways as a sum of consecutive naturals, for example, 3215 + ... + 6276.

It is an arithmetic number, because the mean of its divisors is an integer number (3635436).

Almost surely, 2^14530721 is an apocalyptic number.

It is an amenable number.

14530721 is a deficient number, since it is larger than the sum of its proper divisors (11023).

14530721 is an equidigital number, since it uses as much as digits as its factorization.

14530721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11022.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 14530721 is about 3811.9182834893. The cubic root of 14530721 is about 244.0220406946.

It can be divided in two parts, 14530 and 721, that added together give a palindrome (15251).

The spelling of 14530721 in words is "fourteen million, five hundred thirty thousand, seven hundred twenty-one".