18045125 has 32 divisors (see below), whose sum is σ = 26417664. Its totient is φ = 12048000.

The previous prime is 18045067. The next prime is 18045173. The reversal of 18045125 is 52154081.

It is not a de Polignac number, because 18045125 - 2⁸ = 18044869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18045094 and 18045103.

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 31 ways as a sum of consecutive naturals, for example, 35624 + ... + 36126.

It is an arithmetic number, because the mean of its divisors is an integer number (825552).

Almost surely, 2^18045125 is an apocalyptic number.

It is an amenable number.

18045125 is a deficient number, since it is larger than the sum of its proper divisors (8372539).

18045125 is an equidigital number, since it uses as much as digits as its factorization.

18045125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 18045125 is about 4247.9553905379. The cubic root of 18045125 is about 262.2929584362.

It can be divided in two parts, 180 and 45125, that multiplied together give a square (8122500 = 2850²).

The spelling of 18045125 in words is "eighteen million, forty-five thousand, one hundred twenty-five".