109083605 has 4 divisors (see below), whose sum is σ = 130900332. Its totient is φ = 87266880.

The previous prime is 109083599. The next prime is 109083613. The reversal of 109083605 is 506380901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506380901 = 13 ⋅38952377.

It can be written as a sum of positive squares in 2 ways, for example, as 49885969 + 59197636 = 7063^2 + 7694^2 .

It is not a de Polignac number, because 109083605 - 2²⁰ = 108035029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 10908356 + ... + 10908365.

It is an arithmetic number, because the mean of its divisors is an integer number (32725083).

Almost surely, 2^109083605 is an apocalyptic number.

It is an amenable number.

109083605 is a deficient number, since it is larger than the sum of its proper divisors (21816727).

109083605 is an equidigital number, since it uses as much as digits as its factorization.

109083605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21816726.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 109083605 is about 10444.3096947572. The cubic root of 109083605 is about 477.8077181025.

The spelling of 109083605 in words is "one hundred nine million, eighty-three thousand, six hundred five".