109173838 has 8 divisors (see below), whose sum is σ = 164018160. Its totient is φ = 54501120.

The previous prime is 109173817. The next prime is 109173853. The reversal of 109173838 is 838371901.

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

It is a self number, because there is not a number n which added to its sum of digits gives 109173838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41298 + ... + 43861.

It is an arithmetic number, because the mean of its divisors is an integer number (20502270).

Almost surely, 2^109173838 is an apocalyptic number.

109173838 is a deficient number, since it is larger than the sum of its proper divisors (54844322).

109173838 is an equidigital number, since it uses as much as digits as its factorization.

109173838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85802.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 109173838 is about 10448.6285224426. The cubic root of 109173838 is about 477.9394279087.

It can be divided in two parts, 109173 and 838, that added together give a palindrome (110011).

The spelling of 109173838 in words is "one hundred nine million, one hundred seventy-three thousand, eight hundred thirty-eight".