18184125 has 16 divisors (see below), whose sum is σ = 30259008. Its totient is φ = 9698000.

The previous prime is 18184097. The next prime is 18184151. The reversal of 18184125 is 52148181.

It is a happy number.

It is not a de Polignac number, because 18184125 - 2¹⁶ = 18118589 is a prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 18184092 and 18184101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23871 + ... + 24620.

It is an arithmetic number, because the mean of its divisors is an integer number (1891188).

Almost surely, 2^18184125 is an apocalyptic number.

18184125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18184125 is a deficient number, since it is larger than the sum of its proper divisors (12074883).

18184125 is an equidigital number, since it uses as much as digits as its factorization.

18184125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48509 (or 48499 counting only the distinct ones).

The product of its digits is 2560, while the sum is 30.

The square root of 18184125 is about 4264.2848169418. The cubic root of 18184125 is about 262.9647097082.

The spelling of 18184125 in words is "eighteen million, one hundred eighty-four thousand, one hundred twenty-five".