109095985 has 4 divisors (see below), whose sum is σ = 130915188. Its totient is φ = 87276784.

The previous prime is 109095971. The next prime is 109095991. The reversal of 109095985 is 589590901.

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 34152336 + 74943649 = 5844^2 + 8657^2 .

It is a cyclic number.

It is not a de Polignac number, because 109095985 - 2¹¹ = 109093937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10909594 + ... + 10909603.

It is an arithmetic number, because the mean of its divisors is an integer number (32728797).

Almost surely, 2^109095985 is an apocalyptic number.

It is an amenable number.

109095985 is a deficient number, since it is larger than the sum of its proper divisors (21819203).

109095985 is an equidigital number, since it uses as much as digits as its factorization.

109095985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21819202.

The product of its (nonzero) digits is 145800, while the sum is 46.

The square root of 109095985 is about 10444.9023451634. The cubic root of 109095985 is about 477.8257930331.

The spelling of 109095985 in words is "one hundred nine million, ninety-five thousand, nine hundred eighty-five".