14728440145 has 4 divisors (see below), whose sum is σ = 17674128180. Its totient is φ = 11782752112.

The previous prime is 14728440143. The next prime is 14728440169. The reversal of 14728440145 is 54104482741.

It is a happy number.

14728440145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10504610064 + 4223830081 = 102492^2 + 64991^2 .

It is a cyclic number.

It is not a de Polignac number, because 14728440145 - 2¹ = 14728440143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14728440098 and 14728440107.

It is not an unprimeable number, because it can be changed into a prime (14728440143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472844010 + ... + 1472844019.

It is an arithmetic number, because the mean of its divisors is an integer number (4418532045).

Almost surely, 2^14728440145 is an apocalyptic number.

It is an amenable number.

14728440145 is a deficient number, since it is larger than the sum of its proper divisors (2945688035).

14728440145 is an equidigital number, since it uses as much as digits as its factorization.

14728440145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945688034.

The product of its (nonzero) digits is 143360, while the sum is 40.

The spelling of 14728440145 in words is "fourteen billion, seven hundred twenty-eight million, four hundred forty thousand, one hundred forty-five".