14126721 has 16 divisors (see below), whose sum is σ = 21663744. Its totient is φ = 8020944.

The previous prime is 14126719. The next prime is 14126729. The reversal of 14126721 is 12762141.

14126721 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14126721 - 2¹ = 14126719 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14126691 and 14126700.

It is not an unprimeable number, because it can be changed into a prime (14126729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1360 + ... + 5486.

It is an arithmetic number, because the mean of its divisors is an integer number (1353984).

Almost surely, 2^14126721 is an apocalyptic number.

It is an amenable number.

14126721 is a deficient number, since it is larger than the sum of its proper divisors (7537023).

14126721 is a wasteful number, since it uses less digits than its factorization.

14126721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300.

The product of its digits is 672, while the sum is 24.

The square root of 14126721 is about 3758.5530460538. The cubic root of 14126721 is about 241.7392234509.

Adding to 14126721 its reverse (12762141), we get a palindrome (26888862).

It can be divided in two parts, 141 and 26721, that added together give a palindrome (26862).

The spelling of 14126721 in words is "fourteen million, one hundred twenty-six thousand, seven hundred twenty-one".