129871024 has 40 divisors (see below), whose sum is σ = 267357888. Its totient is φ = 60902400.

The previous prime is 129870971. The next prime is 129871031. The reversal of 129871024 is 420178921.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 99174 + ... + 100474.

Almost surely, 2^129871024 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 129871024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133678944).

129871024 is an abundant number, since it is smaller than the sum of its proper divisors (137486864).

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

129871024 is a wasteful number, since it uses less digits than its factorization.

129871024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 129871024 is about 11396.0968756851. The cubic root of 129871024 is about 506.4121166719.

The spelling of 129871024 in words is "one hundred twenty-nine million, eight hundred seventy-one thousand, twenty-four".