109611 has 12 divisors (see below), whose sum is σ = 166920. Its totient is φ = 69120.

The previous prime is 109609. The next prime is 109619. The reversal of 109611 is 116901.

It is not a de Polignac number, because 109611 - 2¹ = 109609 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109611.

It is not an unprimeable number, because it can be changed into a prime (109619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150 + ... + 491.

It is an arithmetic number, because the mean of its divisors is an integer number (13910).

2¹⁰⁹⁶¹¹ is an apocalyptic number.

109611 is a deficient number, since it is larger than the sum of its proper divisors (57309).

109611 is a wasteful number, since it uses less digits than its factorization.

109611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 109611 is about 331.0755200857. The cubic root of 109611 is about 47.8576511843.

The spelling of 109611 in words is "one hundred nine thousand, six hundred eleven".