14125721 has 8 divisors (see below), whose sum is σ = 15122400. Its totient is φ = 13154400.

The previous prime is 14125711. The next prime is 14125723. The reversal of 14125721 is 12752141.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14125721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14125723) 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, 5180 + ... + 7421.

It is an arithmetic number, because the mean of its divisors is an integer number (1890300).

Almost surely, 2^14125721 is an apocalyptic number.

It is an amenable number.

14125721 is a deficient number, since it is larger than the sum of its proper divisors (996679).

14125721 is a wasteful number, since it uses less digits than its factorization.

14125721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12679.

The product of its digits is 560, while the sum is 23.

The square root of 14125721 is about 3758.4200137824. The cubic root of 14125721 is about 241.7335192508.

Adding to 14125721 its reverse (12752141), we get a palindrome (26877862).

The spelling of 14125721 in words is "fourteen million, one hundred twenty-five thousand, seven hundred twenty-one".