110091 has 4 divisors (see below), whose sum is σ = 146792. Its totient is φ = 73392.

The previous prime is 110083. The next prime is 110119. The reversal of 110091 is 190011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190011 = 3 ⋅63337.

It is not a de Polignac number, because 110091 - 2³ = 110083 is a prime.

It is a D-number.

It is a Duffinian number.

110091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (110051) 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, 18346 + ... + 18351.

It is an arithmetic number, because the mean of its divisors is an integer number (36698).

2¹¹⁰⁰⁹¹ is an apocalyptic number.

110091 is a deficient number, since it is larger than the sum of its proper divisors (36701).

110091 is an equidigital number, since it uses as much as digits as its factorization.

110091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36700.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 110091 is about 331.7996383362. The cubic root of 110091 is about 47.9274076320.

The spelling of 110091 in words is "one hundred ten thousand, ninety-one".