109609023 has 4 divisors (see below), whose sum is σ = 146145368. Its totient is φ = 73072680.

The previous prime is 109608991. The next prime is 109609033. The reversal of 109609023 is 320906901.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 109609023 - 2⁵ = 109608991 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 (109609033) 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, 18268168 + ... + 18268173.

It is an arithmetic number, because the mean of its divisors is an integer number (36536342).

Almost surely, 2^109609023 is an apocalyptic number.

109609023 is a deficient number, since it is larger than the sum of its proper divisors (36536345).

109609023 is an equidigital number, since it uses as much as digits as its factorization.

109609023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36536344.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 109609023 is about 10469.4327926588. The cubic root of 109609023 is about 478.5736345420.

The spelling of 109609023 in words is "one hundred nine million, six hundred nine thousand, twenty-three".