18182136 has 48 divisors (see below), whose sum is σ = 52880040. Its totient is φ = 5194560.

The previous prime is 18182123. The next prime is 18182137. The reversal of 18182136 is 63128181.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18182137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6555 + ... + 8906.

Almost surely, 2^18182136 is an apocalyptic number.

It is an amenable number.

18182136 is an abundant number, since it is smaller than the sum of its proper divisors (34697904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18182136 is a wasteful number, since it uses less digits than its factorization.

18182136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15484 (or 15473 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 18182136 is about 4264.0515944346. The cubic root of 18182136 is about 262.9551215669.

The spelling of 18182136 in words is "eighteen million, one hundred eighty-two thousand, one hundred thirty-six".