18545125 has 8 divisors (see below), whose sum is σ = 23144472. Its totient is φ = 14836000.

The previous prime is 18545117. The next prime is 18545143. The reversal of 18545125 is 52154581.

It can be written as a sum of positive squares in 4 ways, for example, as 1718721 + 16826404 = 1311^2 + 4102^2 .

It is not a de Polignac number, because 18545125 - 2³ = 18545117 is a prime.

It is a super-2 number, since 2×18545125² = 687843322531250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74056 + ... + 74305.

It is an arithmetic number, because the mean of its divisors is an integer number (2893059).

Almost surely, 2^18545125 is an apocalyptic number.

It is an amenable number.

18545125 is a deficient number, since it is larger than the sum of its proper divisors (4599347).

18545125 is an equidigital number, since it uses as much as digits as its factorization.

18545125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148376 (or 148366 counting only the distinct ones).

The product of its digits is 8000, while the sum is 31.

The square root of 18545125 is about 4306.4051133167. The cubic root of 18545125 is about 264.6934868318.

The spelling of 18545125 in words is "eighteen million, five hundred forty-five thousand, one hundred twenty-five".