129063732 has 96 divisors (see below), whose sum is σ = 365030400. Its totient is φ = 34670592.

The previous prime is 129063719. The next prime is 129063743. The reversal of 129063732 is 237360921.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 129063693 and 129063702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307819 + ... + 308237.

It is an arithmetic number, because the mean of its divisors is an integer number (3802400).

Almost surely, 2^129063732 is an apocalyptic number.

129063732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129063732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182515200).

129063732 is an abundant number, since it is smaller than the sum of its proper divisors (235966668).

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

129063732 is a wasteful number, since it uses less digits than its factorization.

129063732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 129063732 is about 11360.6219900145. The cubic root of 129063732 is about 505.3606312061.

It can be divided in two parts, 129063 and 732, that added together give a triangular number (129795 = T₅₀₉).

The spelling of 129063732 in words is "one hundred twenty-nine million, sixty-three thousand, seven hundred thirty-two".