18413875 has 8 divisors (see below), whose sum is σ = 22980672. Its totient is φ = 14731000.

The previous prime is 18413851. The next prime is 18413893. The reversal of 18413875 is 57831481.

It is not a de Polignac number, because 18413875 - 2¹³ = 18405683 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 7 ways as a sum of consecutive naturals, for example, 73531 + ... + 73780.

It is an arithmetic number, because the mean of its divisors is an integer number (2872584).

Almost surely, 2^18413875 is an apocalyptic number.

18413875 is a deficient number, since it is larger than the sum of its proper divisors (4566797).

18413875 is an equidigital number, since it uses as much as digits as its factorization.

18413875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147326 (or 147316 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 18413875 is about 4291.1391261529. The cubic root of 18413875 is about 264.0675666897.

The spelling of 18413875 in words is "eighteen million, four hundred thirteen thousand, eight hundred seventy-five".