109609271 has 4 divisors (see below), whose sum is σ = 115378200. Its totient is φ = 103840344.

The previous prime is 109609267. The next prime is 109609301. The reversal of 109609271 is 172906901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172906901 = 149 ⋅1160449.

It is a cyclic number.

It is not a de Polignac number, because 109609271 - 2² = 109609267 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 (109609571) 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 3 ways as a sum of consecutive naturals, for example, 2884436 + ... + 2884473.

It is an arithmetic number, because the mean of its divisors is an integer number (28844550).

Almost surely, 2^109609271 is an apocalyptic number.

109609271 is a deficient number, since it is larger than the sum of its proper divisors (5768929).

109609271 is an equidigital number, since it uses as much as digits as its factorization.

109609271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768928.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 109609271 is about 10469.4446366558. Note that the first 3 decimals coincide. The cubic root of 109609271 is about 478.5739954800.

The spelling of 109609271 in words is "one hundred nine million, six hundred nine thousand, two hundred seventy-one".