109445091 has 8 divisors (see below), whose sum is σ = 166773504. Its totient is φ = 62540040.

The previous prime is 109445081. The next prime is 109445107. The reversal of 109445091 is 190544901.

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

It is not a de Polignac number, because 109445091 - 2¹⁰ = 109444067 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (109445051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2605815 + ... + 2605856.

It is an arithmetic number, because the mean of its divisors is an integer number (20846688).

Almost surely, 2^109445091 is an apocalyptic number.

109445091 is a deficient number, since it is larger than the sum of its proper divisors (57328413).

109445091 is an equidigital number, since it uses as much as digits as its factorization.

109445091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211681.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 109445091 is about 10461.6007857306. The cubic root of 109445091 is about 478.3349295056.

Adding to 109445091 its reverse (190544901), we get a palindrome (299989992).

The spelling of 109445091 in words is "one hundred nine million, four hundred forty-five thousand, ninety-one".