168481272 has 32 divisors (see below), whose sum is σ = 425941200. Its totient is φ = 55528704.

The previous prime is 168481241. The next prime is 168481273. The reversal of 168481272 is 272184861.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 168481272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168481273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37303 + ... + 41574.

Almost surely, 2^168481272 is an apocalyptic number.

168481272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168481272 is an abundant number, since it is smaller than the sum of its proper divisors (257459928).

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

168481272 is a wasteful number, since it uses less digits than its factorization.

168481272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78975 (or 78971 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 168481272 is about 12980.0335900952. The cubic root of 168481272 is about 552.3112349010.

The spelling of 168481272 in words is "one hundred sixty-eight million, four hundred eighty-one thousand, two hundred seventy-two".