14499721 has 4 divisors (see below), whose sum is σ = 14529744. Its totient is φ = 14469700.

The previous prime is 14499713. The next prime is 14499733. The reversal of 14499721 is 12799441.

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.

It is a cyclic number.

It is not a de Polignac number, because 14499721 - 2³ = 14499713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14499701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14275 + ... + 15256.

It is an arithmetic number, because the mean of its divisors is an integer number (3632436).

Almost surely, 2^14499721 is an apocalyptic number.

It is an amenable number.

14499721 is a deficient number, since it is larger than the sum of its proper divisors (30023).

14499721 is an equidigital number, since it uses as much as digits as its factorization.

14499721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30022.

The product of its digits is 18144, while the sum is 37.

The square root of 14499721 is about 3807.8499182610. The cubic root of 14499721 is about 243.8483840405.

The spelling of 14499721 in words is "fourteen million, four hundred ninety-nine thousand, seven hundred twenty-one".