109308173 has 8 divisors (see below), whose sum is σ = 120588216. Its totient is φ = 98438400.

The previous prime is 109308169. The next prime is 109308187. The reversal of 109308173 is 371803901.

It can be written as a sum of positive squares in 4 ways, for example, as 1605289 + 107702884 = 1267^2 + 10378^2 .

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 109308173 - 2² = 109308169 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109307173) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 102008 + ... + 103073.

It is an arithmetic number, because the mean of its divisors is an integer number (15073527).

Almost surely, 2^109308173 is an apocalyptic number.

109308173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

109308173 is a deficient number, since it is larger than the sum of its proper divisors (11280043).

109308173 is a wasteful number, since it uses less digits than its factorization.

109308173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205135.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 109308173 is about 10455.0549018166. The cubic root of 109308173 is about 478.1353774101.

The spelling of 109308173 in words is "one hundred nine million, three hundred eight thousand, one hundred seventy-three".