109805843 has 8 divisors (see below), whose sum is σ = 126786912. Its totient is φ = 93148416.

The previous prime is 109805821. The next prime is 109805849. The reversal of 109805843 is 348508901.

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 109805843 - 2⁶ = 109805779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109805797 and 109805806.

It is not an unprimeable number, because it can be changed into a prime (109805849) 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 7 ways as a sum of consecutive naturals, for example, 80180 + ... + 81537.

It is an arithmetic number, because the mean of its divisors is an integer number (15848364).

Almost surely, 2^109805843 is an apocalyptic number.

109805843 is a deficient number, since it is larger than the sum of its proper divisors (16981069).

109805843 is an equidigital number, since it uses as much as digits as its factorization.

109805843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161821.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 109805843 is about 10478.8283219070. The cubic root of 109805843 is about 478.8599143179.

The spelling of 109805843 in words is "one hundred nine million, eight hundred five thousand, eight hundred forty-three".