181086 has 8 divisors (see below), whose sum is σ = 362184. Its totient is φ = 60360.

The previous prime is 181081. The next prime is 181087. The reversal of 181086 is 680181.

It is a sphenic number, since it is the product of 3 distinct primes.

181086 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15085 + ... + 15096.

It is an arithmetic number, because the mean of its divisors is an integer number (45273).

2¹⁸¹⁰⁸⁶ is an apocalyptic number.

181086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

181086 is a wasteful number, since it uses less digits than its factorization.

181086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30186.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 181086 is about 425.5420073271. The cubic root of 181086 is about 56.5754858110.

The spelling of 181086 in words is "one hundred eighty-one thousand, eighty-six".