129508848 has 160 divisors (see below), whose sum is σ = 429734400. Its totient is φ = 36578304.

The previous prime is 129508831. The next prime is 129508859. The reversal of 129508848 is 848805921.

It is a happy number.

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, 341523 + ... + 341901.

It is an arithmetic number, because the mean of its divisors is an integer number (2685840).

Almost surely, 2^129508848 is an apocalyptic number.

129508848 is a gapful number since it is divisible by the number (18) 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 129508848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214867200).

129508848 is an abundant number, since it is smaller than the sum of its proper divisors (300225552).

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

129508848 is a wasteful number, since it uses less digits than its factorization.

129508848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 129508848 is about 11380.1954289019. The cubic root of 129508848 is about 505.9409284934.

The spelling of 129508848 in words is "one hundred twenty-nine million, five hundred eight thousand, eight hundred forty-eight".