185112018 has 48 divisors (see below), whose sum is σ = 493636416. Its totient is φ = 48820320.

The previous prime is 185111977. The next prime is 185112019. The reversal of 185112018 is 810211581.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 185111982 and 185112000.

It is not an unprimeable number, because it can be changed into a prime (185112019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54868 + ... + 58143.

It is an arithmetic number, because the mean of its divisors is an integer number (10284092).

Almost surely, 2^185112018 is an apocalyptic number.

185112018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

185112018 is an abundant number, since it is smaller than the sum of its proper divisors (308524398).

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

185112018 is a wasteful number, since it uses less digits than its factorization.

185112018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113039 (or 113036 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 27.

The square root of 185112018 is about 13605.5877491566. The cubic root of 185112018 is about 569.9169038608.

Adding to 185112018 its reverse (810211581), we get a palindrome (995323599).

The spelling of 185112018 in words is "one hundred eighty-five million, one hundred twelve thousand, eighteen".