181106 has 8 divisors (see below), whose sum is σ = 275184. Its totient is φ = 89380.

The previous prime is 181087. The next prime is 181123. The reversal of 181106 is 601181.

It is a happy number.

181106 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380 + ... + 711.

It is an arithmetic number, because the mean of its divisors is an integer number (34398).

2¹⁸¹¹⁰⁶ is an apocalyptic number.

181106 is a deficient number, since it is larger than the sum of its proper divisors (94078).

181106 is a wasteful number, since it uses less digits than its factorization.

181106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 181106 is about 425.5655061210. The cubic root of 181106 is about 56.5775685563.

Adding to 181106 its reverse (601181), we get a palindrome (782287).

The spelling of 181106 in words is "one hundred eighty-one thousand, one hundred six".