129429168 has 40 divisors (see below), whose sum is σ = 364756416. Its totient is φ = 39220800.

The previous prime is 129429161. The next prime is 129429173. The reversal of 129429168 is 861924921.

It is not an unprimeable number, because it can be changed into a prime (129429161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122038 + ... + 123093.

Almost surely, 2^129429168 is an apocalyptic number.

It is an amenable number.

129429168 is an abundant number, since it is smaller than the sum of its proper divisors (235327248).

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

129429168 is a wasteful number, since it uses less digits than its factorization.

129429168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245153 (or 245147 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 129429168 is about 11376.6940716537. The cubic root of 129429168 is about 505.8371475698.

The spelling of 129429168 in words is "one hundred twenty-nine million, four hundred twenty-nine thousand, one hundred sixty-eight".