109166 has 4 divisors (see below), whose sum is σ = 163752. Its totient is φ = 54582.

The previous prime is 109159. The next prime is 109169. The reversal of 109166 is 661901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661901 = 47 ⋅14083.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109166.

It is not an unprimeable number, because it can be changed into a prime (109169) by changing a digit.

109166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27290 + ... + 27293.

It is an arithmetic number, because the mean of its divisors is an integer number (40938).

2¹⁰⁹¹⁶⁶ is an apocalyptic number.

109166 is a deficient number, since it is larger than the sum of its proper divisors (54586).

109166 is an equidigital number, since it uses as much as digits as its factorization.

109166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54585.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 109166 is about 330.4027844919. The cubic root of 109166 is about 47.7927989946.

The spelling of 109166 in words is "one hundred nine thousand, one hundred sixty-six".