18116375 has 8 divisors (see below), whose sum is σ = 22609392. Its totient is φ = 14493000.

The previous prime is 18116353. The next prime is 18116393. The reversal of 18116375 is 57361181.

It is not a de Polignac number, because 18116375 - 2⁶ = 18116311 is a prime.

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 72341 + ... + 72590.

It is an arithmetic number, because the mean of its divisors is an integer number (2826174).

Almost surely, 2^18116375 is an apocalyptic number.

18116375 is a deficient number, since it is larger than the sum of its proper divisors (4493017).

18116375 is an equidigital number, since it uses as much as digits as its factorization.

18116375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144946 (or 144936 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 18116375 is about 4256.3335160676. Note that the first 3 decimals coincide. The cubic root of 18116375 is about 262.6377206272.

The spelling of 18116375 in words is "eighteen million, one hundred sixteen thousand, three hundred seventy-five".