168128112 has 40 divisors (see below), whose sum is σ = 457192960. Its totient is φ = 53092800.

The previous prime is 168128101. The next prime is 168128141. The reversal of 168128112 is 211821861.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 168128112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91264 + ... + 93087.

It is an arithmetic number, because the mean of its divisors is an integer number (11429824).

Almost surely, 2^168128112 is an apocalyptic number.

168128112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168128112 is an abundant number, since it is smaller than the sum of its proper divisors (289064848).

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

168128112 is a wasteful number, since it uses less digits than its factorization.

168128112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184381 (or 184375 counting only the distinct ones).

The product of its digits is 1536, while the sum is 30.

The square root of 168128112 is about 12966.4224827051. The cubic root of 168128112 is about 551.9250580890.

Adding to 168128112 its reverse (211821861), we get a palindrome (379949973).

The spelling of 168128112 in words is "one hundred sixty-eight million, one hundred twenty-eight thousand, one hundred twelve".