173921103 has 24 divisors (see below), whose sum is σ = 260222976. Its totient is φ = 111862800.

The previous prime is 173921029. The next prime is 173921123. The reversal of 173921103 is 301129371.

It is not a de Polignac number, because 173921103 - 2¹⁸ = 173658959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173921123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27138 + ... + 32928.

It is an arithmetic number, because the mean of its divisors is an integer number (10842624).

Almost surely, 2^173921103 is an apocalyptic number.

173921103 is a deficient number, since it is larger than the sum of its proper divisors (86301873).

173921103 is a wasteful number, since it uses less digits than its factorization.

173921103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915 (or 5912 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 173921103 is about 13187.9150361230. The cubic root of 173921103 is about 558.1926243673.

The spelling of 173921103 in words is "one hundred seventy-three million, nine hundred twenty-one thousand, one hundred three".