168731112 has 96 divisors (see below), whose sum is σ = 469224000. Its totient is φ = 50519040.

The previous prime is 168731083. The next prime is 168731117. The reversal of 168731112 is 211137861.

It is a self number, because there is not a number n which added to its sum of digits gives 168731112.

It is not an unprimeable number, because it can be changed into a prime (168731117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281389 + ... + 281987.

It is an arithmetic number, because the mean of its divisors is an integer number (4887750).

Almost surely, 2^168731112 is an apocalyptic number.

168731112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168731112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234612000).

168731112 is an abundant number, since it is smaller than the sum of its proper divisors (300492888).

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

168731112 is a wasteful number, since it uses less digits than its factorization.

168731112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 712 counting only the distinct ones).

The product of its digits is 2016, while the sum is 30.

The square root of 168731112 is about 12989.6540369634. The cubic root of 168731112 is about 552.5841065492.

Adding to 168731112 its reverse (211137861), we get a palindrome (379868973).

The spelling of 168731112 in words is "one hundred sixty-eight million, seven hundred thirty-one thousand, one hundred twelve".