173129830 has 8 divisors (see below), whose sum is σ = 311633712. Its totient is φ = 69251928.

The previous prime is 173129813. The next prime is 173129837. The reversal of 173129830 is 38921371.

173129830 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173129837) 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, 8656482 + ... + 8656501.

It is an arithmetic number, because the mean of its divisors is an integer number (38954214).

Almost surely, 2^173129830 is an apocalyptic number.

173129830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

173129830 is a deficient number, since it is larger than the sum of its proper divisors (138503882).

173129830 is a wasteful number, since it uses less digits than its factorization.

173129830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17312990.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 173129830 is about 13157.8809084138. The cubic root of 173129830 is about 557.3448179560.

The spelling of 173129830 in words is "one hundred seventy-three million, one hundred twenty-nine thousand, eight hundred thirty".