173312112 has 20 divisors (see below), whose sum is σ = 447723080. Its totient is φ = 57770688.

The previous prime is 173312081. The next prime is 173312141. The reversal of 173312112 is 211213371.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1805287 + ... + 1805382.

It is an arithmetic number, because the mean of its divisors is an integer number (22386154).

Almost surely, 2^173312112 is an apocalyptic number.

173312112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

173312112 is an abundant number, since it is smaller than the sum of its proper divisors (274410968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173312112 is a wasteful number, since it uses less digits than its factorization.

173312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610680 (or 3610674 counting only the distinct ones).

The product of its digits is 252, while the sum is 21.

The square root of 173312112 is about 13164.8058094299. The cubic root of 173312112 is about 557.5403519359.

Adding to 173312112 its reverse (211213371), we get a palindrome (384525483).

The spelling of 173312112 in words is "one hundred seventy-three million, three hundred twelve thousand, one hundred twelve".