14128565 has 20 divisors (see below), whose sum is σ = 18746220. Its totient is φ = 10222080.

The previous prime is 14128549. The next prime is 14128573. The reversal of 14128565 is 56582141.

It can be written as a sum of positive squares in 2 ways, for example, as 4231249 + 9897316 = 2057^2 + 3146^2 .

It is not a de Polignac number, because 14128565 - 2⁴ = 14128549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73109 + ... + 73301.

It is an arithmetic number, because the mean of its divisors is an integer number (937311).

Almost surely, 2^14128565 is an apocalyptic number.

It is an amenable number.

14128565 is a deficient number, since it is larger than the sum of its proper divisors (4617655).

14128565 is an frugal number, since it uses more digits than its factorization.

14128565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 209 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 14128565 is about 3758.7983452162. The cubic root of 14128565 is about 241.7497412899.

The spelling of 14128565 in words is "fourteen million, one hundred twenty-eight thousand, five hundred sixty-five".