110091091 has 4 divisors (see below), whose sum is σ = 120099384. Its totient is φ = 100082800.

The previous prime is 110091089. The next prime is 110091097. The reversal of 110091091 is 190190011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 110091091 - 2¹ = 110091089 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110091097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5004130 + ... + 5004151.

It is an arithmetic number, because the mean of its divisors is an integer number (30024846).

Almost surely, 2^110091091 is an apocalyptic number.

110091091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

110091091 is a deficient number, since it is larger than the sum of its proper divisors (10008293).

110091091 is a wasteful number, since it uses less digits than its factorization.

110091091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008292.

The product of its (nonzero) digits is 81, while the sum is 22.

The square root of 110091091 is about 10492.4301760841. The cubic root of 110091091 is about 479.2742083746.

It can be divided in two parts, 11009 and 1091, that added together give a square (12100 = 110²).

The spelling of 110091091 in words is "one hundred ten million, ninety-one thousand, ninety-one".