129283168 has 72 divisors (see below), whose sum is σ = 303453864. Its totient is φ = 54028800.

The previous prime is 129283159. The next prime is 129283169. The reversal of 129283168 is 861382921.

It is a self number, because there is not a number n which added to its sum of digits gives 129283168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129283169) 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 11 ways as a sum of consecutive naturals, for example, 63283 + ... + 65293.

It is an arithmetic number, because the mean of its divisors is an integer number (4214637).

Almost surely, 2^129283168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129283168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151726932).

129283168 is an abundant number, since it is smaller than the sum of its proper divisors (174170696).

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

129283168 is a wasteful number, since it uses less digits than its factorization.

129283168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076 (or 2061 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 129283168 is about 11370.2756343019. The cubic root of 129283168 is about 505.6468761617.

It can be divided in two parts, 12928 and 3168, that multiplied together give a palindrome (40955904).

The spelling of 129283168 in words is "one hundred twenty-nine million, two hundred eighty-three thousand, one hundred sixty-eight".