14020721 has 8 divisors (see below), whose sum is σ = 16472064. Its totient is φ = 11765520.

The previous prime is 14020703. The next prime is 14020723. The reversal of 14020721 is 12702041.

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

It is not a de Polignac number, because 14020721 - 2¹⁴ = 14004337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14020721.

It is not an unprimeable number, because it can be changed into a prime (14020723) 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 7 ways as a sum of consecutive naturals, for example, 48881 + ... + 49166.

It is an arithmetic number, because the mean of its divisors is an integer number (2059008).

Almost surely, 2^14020721 is an apocalyptic number.

14020721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14020721 is a deficient number, since it is larger than the sum of its proper divisors (2451343).

14020721 is a wasteful number, since it uses less digits than its factorization.

14020721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98071.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 14020721 is about 3744.4253230636. The cubic root of 14020721 is about 241.1330738927.

Adding to 14020721 its reverse (12702041), we get a palindrome (26722762).

It can be divided in two parts, 14020 and 721, that added together give a palindrome (14741).

The spelling of 14020721 in words is "fourteen million, twenty thousand, seven hundred twenty-one".