18842125 has 16 divisors (see below), whose sum is σ = 23639616. Its totient is φ = 14994000.

The previous prime is 18842111. The next prime is 18842143. The reversal of 18842125 is 52124881.

It is not a de Polignac number, because 18842125 - 2⁷ = 18841997 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38130 + ... + 38620.

It is an arithmetic number, because the mean of its divisors is an integer number (1477476).

Almost surely, 2^18842125 is an apocalyptic number.

It is an amenable number.

18842125 is a deficient number, since it is larger than the sum of its proper divisors (4797491).

18842125 is an equidigital number, since it uses as much as digits as its factorization.

18842125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 803 counting only the distinct ones).

The product of its digits is 5120, while the sum is 31.

The square root of 18842125 is about 4340.7516630187. The cubic root of 18842125 is about 266.0990312854.

The spelling of 18842125 in words is "eighteen million, eight hundred forty-two thousand, one hundred twenty-five".