14107721 has 8 divisors (see below), whose sum is σ = 14405664. Its totient is φ = 13812480.

The previous prime is 14107703. The next prime is 14107727. The reversal of 14107721 is 12770141.

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-14107721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14107727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12386 + ... + 13476.

It is an arithmetic number, because the mean of its divisors is an integer number (1800708).

Almost surely, 2^14107721 is an apocalyptic number.

It is an amenable number.

14107721 is a deficient number, since it is larger than the sum of its proper divisors (297943).

14107721 is a wasteful number, since it uses less digits than its factorization.

14107721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 14107721 is about 3756.0246271823. The cubic root of 14107721 is about 241.6307975830.

Adding to 14107721 its reverse (12770141), we get a palindrome (26877862).

The spelling of 14107721 in words is "fourteen million, one hundred seven thousand, seven hundred twenty-one".