14116721 has 4 divisors (see below), whose sum is σ = 14498292. Its totient is φ = 13735152.

The previous prime is 14116703. The next prime is 14116799. The reversal of 14116721 is 12761141.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7639696 + 6477025 = 2764^2 + 2545^2 .

It is a cyclic number.

It is not a de Polignac number, because 14116721 - 2⁶ = 14116657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14110721) 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, 190730 + ... + 190803.

It is an arithmetic number, because the mean of its divisors is an integer number (3624573).

Almost surely, 2^14116721 is an apocalyptic number.

It is an amenable number.

14116721 is a deficient number, since it is larger than the sum of its proper divisors (381571).

14116721 is an equidigital number, since it uses as much as digits as its factorization.

14116721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381570.

The product of its digits is 336, while the sum is 23.

The square root of 14116721 is about 3757.2225113773. Note that the first 3 decimals coincide. The cubic root of 14116721 is about 241.6821693318.

Adding to 14116721 its reverse (12761141), we get a palindrome (26877862).

The spelling of 14116721 in words is "fourteen million, one hundred sixteen thousand, seven hundred twenty-one".