108816309 has 36 divisors (see below), whose sum is σ = 183815424. Its totient is φ = 61849872.

The previous prime is 108816277. The next prime is 108816311. The reversal of 108816309 is 903618801.

108816309 is a `hidden beast` number, since 10 + 8 + 8 + 1 + 630 + 9 = 666.

It is not a de Polignac number, because 108816309 - 2⁵ = 108816277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108816319) 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 35 ways as a sum of consecutive naturals, for example, 99564 + ... + 100650.

It is an arithmetic number, because the mean of its divisors is an integer number (5105984).

Almost surely, 2^108816309 is an apocalyptic number.

It is an amenable number.

108816309 is a deficient number, since it is larger than the sum of its proper divisors (74999115).

108816309 is a wasteful number, since it uses less digits than its factorization.

108816309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 108816309 is about 10431.5055960298. The cubic root of 108816309 is about 477.4171291544.

The spelling of 108816309 in words is "one hundred eight million, eight hundred sixteen thousand, three hundred nine".