18851125 has 16 divisors (see below), whose sum is σ = 23662080. Its totient is φ = 14994000.

The previous prime is 18851123. The next prime is 18851137. The reversal of 18851125 is 52115881.

It is not a de Polignac number, because 18851125 - 2¹ = 18851123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18851123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29560 + ... + 30190.

It is an arithmetic number, because the mean of its divisors is an integer number (1478880).

Almost surely, 2^18851125 is an apocalyptic number.

It is an amenable number.

18851125 is a deficient number, since it is larger than the sum of its proper divisors (4810955).

18851125 is an equidigital number, since it uses as much as digits as its factorization.

18851125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 875 counting only the distinct ones).

The product of its digits is 3200, while the sum is 31.

The square root of 18851125 is about 4341.7882260654. The cubic root of 18851125 is about 266.1413922200.

The spelling of 18851125 in words is "eighteen million, eight hundred fifty-one thousand, one hundred twenty-five".