108539885 has 4 divisors (see below), whose sum is σ = 130247868. Its totient is φ = 86831904.

The previous prime is 108539867. The next prime is 108539887. The reversal of 108539885 is 588935801.

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 81468676 + 27071209 = 9026^2 + 5203^2 .

It is a cyclic number.

It is not a de Polignac number, because 108539885 - 2¹² = 108535789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108539887) 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, 10853984 + ... + 10853993.

It is an arithmetic number, because the mean of its divisors is an integer number (32561967).

Almost surely, 2^108539885 is an apocalyptic number.

It is an amenable number.

108539885 is a deficient number, since it is larger than the sum of its proper divisors (21707983).

108539885 is an equidigital number, since it uses as much as digits as its factorization.

108539885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21707982.

The product of its (nonzero) digits is 345600, while the sum is 47.

The square root of 108539885 is about 10418.2476933504. The cubic root of 108539885 is about 477.0125284768.

The spelling of 108539885 in words is "one hundred eight million, five hundred thirty-nine thousand, eight hundred eighty-five".