18182245 has 16 divisors (see below), whose sum is σ = 22302720. Its totient is φ = 14227200.

The previous prime is 18182201. The next prime is 18182251. The reversal of 18182245 is 54228181.

It is not a de Polignac number, because 18182245 - 2¹³ = 18174053 is a prime.

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, 75325 + ... + 75565.

It is an arithmetic number, because the mean of its divisors is an integer number (1393920).

Almost surely, 2^18182245 is an apocalyptic number.

It is an amenable number.

18182245 is a deficient number, since it is larger than the sum of its proper divisors (4120475).

18182245 is a wasteful number, since it uses less digits than its factorization.

18182245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

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

The square root of 18182245 is about 4264.0643756867. The cubic root of 18182245 is about 262.9556470287.

The spelling of 18182245 in words is "eighteen million, one hundred eighty-two thousand, two hundred forty-five".