18140075 has 6 divisors (see below), whose sum is σ = 22493724. Its totient is φ = 14512040.

The previous prime is 18140063. The next prime is 18140093. The reversal of 18140075 is 57004181.

It is not a de Polignac number, because 18140075 - 2⁶ = 18140011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 362777 + ... + 362826.

It is an arithmetic number, because the mean of its divisors is an integer number (3748954).

Almost surely, 2^18140075 is an apocalyptic number.

18140075 is a deficient number, since it is larger than the sum of its proper divisors (4353649).

18140075 is an equidigital number, since it uses as much as digits as its factorization.

18140075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725613 (or 725608 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 18140075 is about 4259.1166924610. The cubic root of 18140075 is about 262.7521990411.

The spelling of 18140075 in words is "eighteen million, one hundred forty thousand, seventy-five".