109029785 has 8 divisors (see below), whose sum is σ = 130893000. Its totient is φ = 87185664.

The previous prime is 109029779. The next prime is 109029797. The reversal of 109029785 is 587920901.

It can be written as a sum of positive squares in 4 ways, for example, as 3433609 + 105596176 = 1853^2 + 10276^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109029785 - 2⁴ = 109029769 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16091 + ... + 21839.

It is an arithmetic number, because the mean of its divisors is an integer number (16361625).

Almost surely, 2^109029785 is an apocalyptic number.

It is an amenable number.

109029785 is a deficient number, since it is larger than the sum of its proper divisors (21863215).

109029785 is an equidigital number, since it uses as much as digits as its factorization.

109029785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 109029785 is about 10441.7328542728. The cubic root of 109029785 is about 477.7291244349.

The spelling of 109029785 in words is "one hundred nine million, twenty-nine thousand, seven hundred eighty-five".