18162075 has 12 divisors (see below), whose sum is σ = 30028088. Its totient is φ = 9686400.

The previous prime is 18162071. The next prime is 18162107. The reversal of 18162075 is 57026181.

It is not a de Polignac number, because 18162075 - 2² = 18162071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18162071) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 121006 + ... + 121155.

Almost surely, 2^18162075 is an apocalyptic number.

18162075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18162075 is a deficient number, since it is larger than the sum of its proper divisors (11866013).

18162075 is a wasteful number, since it uses less digits than its factorization.

18162075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242174 (or 242169 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 18162075 is about 4261.6986050165. The cubic root of 18162075 is about 262.8583767186.

The spelling of 18162075 in words is "eighteen million, one hundred sixty-two thousand, seventy-five".