129732096 has 160 divisors (see below), whose sum is σ = 381538080. Its totient is φ = 38928384.

The previous prime is 129732073. The next prime is 129732139. The reversal of 129732096 is 690237921.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1457620 + ... + 1457708.

It is an arithmetic number, because the mean of its divisors is an integer number (2384613).

Almost surely, 2^129732096 is an apocalyptic number.

129732096 is a gapful number since it is divisible by the number (16) 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 129732096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190769040).

129732096 is an abundant number, since it is smaller than the sum of its proper divisors (251805984).

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

129732096 is an equidigital number, since it uses as much as digits as its factorization.

129732096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 129732096 is about 11389.9998244074. Note that the first 3 decimals coincide. The cubic root of 129732096 is about 506.2314761093.

The spelling of 129732096 in words is "one hundred twenty-nine million, seven hundred thirty-two thousand, ninety-six".