109168685 has 16 divisors (see below), whose sum is σ = 135136512. Its totient is φ = 84600000.

The previous prime is 109168681. The next prime is 109168693. The reversal of 109168685 is 586861901.

It is not a de Polignac number, because 109168685 - 2² = 109168681 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 (109168681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45260 + ... + 47610.

It is an arithmetic number, because the mean of its divisors is an integer number (8446032).

Almost surely, 2^109168685 is an apocalyptic number.

It is an amenable number.

109168685 is a deficient number, since it is larger than the sum of its proper divisors (25967827).

109168685 is a wasteful number, since it uses less digits than its factorization.

109168685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 109168685 is about 10448.3819321462. The cubic root of 109168685 is about 477.9319082176.

The spelling of 109168685 in words is "one hundred nine million, one hundred sixty-eight thousand, six hundred eighty-five".