110081809 has 4 divisors (see below), whose sum is σ = 110138404. Its totient is φ = 110025216.

The previous prime is 110081773. The next prime is 110081813. The reversal of 110081809 is 908180011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75742209 + 34339600 = 8703^2 + 5860^2 .

It is a cyclic number.

It is not a de Polignac number, because 110081809 - 2¹⁹ = 109557521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110085809) 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, 25272 + ... + 29305.

It is an arithmetic number, because the mean of its divisors is an integer number (27534601).

Almost surely, 2^110081809 is an apocalyptic number.

It is an amenable number.

110081809 is a deficient number, since it is larger than the sum of its proper divisors (56595).

110081809 is an equidigital number, since it uses as much as digits as its factorization.

110081809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56594.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 110081809 is about 10491.9878478771. The cubic root of 110081809 is about 479.2607384738.

The spelling of 110081809 in words is "one hundred ten million, eighty-one thousand, eight hundred nine".