14134721 has 4 divisors (see below), whose sum is σ = 14165844. Its totient is φ = 14103600.

The previous prime is 14134697. The next prime is 14134723. The reversal of 14134721 is 12743141.

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 10660225 + 3474496 = 3265^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 14134721 - 2¹⁰ = 14133697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14134723) 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, 14870 + ... + 15791.

It is an arithmetic number, because the mean of its divisors is an integer number (3541461).

Almost surely, 2^14134721 is an apocalyptic number.

It is an amenable number.

14134721 is a deficient number, since it is larger than the sum of its proper divisors (31123).

14134721 is an equidigital number, since it uses as much as digits as its factorization.

14134721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31122.

The product of its digits is 672, while the sum is 23.

The square root of 14134721 is about 3759.6171347625. The cubic root of 14134721 is about 241.7848473632.

Adding to 14134721 its reverse (12743141), we get a palindrome (26877862).

The spelling of 14134721 in words is "fourteen million, one hundred thirty-four thousand, seven hundred twenty-one".