109109188 has 6 divisors (see below), whose sum is σ = 190941086. Its totient is φ = 54554592.

The previous prime is 109109177. The next prime is 109109201. The reversal of 109109188 is 881901901.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 101969604 + 7139584 = 10098^2 + 2672^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13638645 + ... + 13638652.

Almost surely, 2^109109188 is an apocalyptic number.

It is an amenable number.

109109188 is a deficient number, since it is larger than the sum of its proper divisors (81831898).

109109188 is a wasteful number, since it uses less digits than its factorization.

109109188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27277301 (or 27277299 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 37.

The square root of 109109188 is about 10445.5343568436. The cubic root of 109109188 is about 477.8450680458.

The spelling of 109109188 in words is "one hundred nine million, one hundred nine thousand, one hundred eighty-eight".