109061805 has 32 divisors (see below), whose sum is σ = 184521600. Its totient is φ = 54853632.

The previous prime is 109061789. The next prime is 109061819. The reversal of 109061805 is 508160901.

It is a happy number.

It is not a de Polignac number, because 109061805 - 2⁴ = 109061789 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 72501 + ... + 73989.

It is an arithmetic number, because the mean of its divisors is an integer number (5766300).

Almost surely, 2^109061805 is an apocalyptic number.

109061805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109061805 is a deficient number, since it is larger than the sum of its proper divisors (75459795).

109061805 is a wasteful number, since it uses less digits than its factorization.

109061805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 109061805 is about 10443.2660121248. The cubic root of 109061805 is about 477.7758865478.

The spelling of 109061805 in words is "one hundred nine million, sixty-one thousand, eight hundred five".