129874560 has 256 divisors, whose sum is σ = 460028160. Its totient is φ = 30998528.

The previous prime is 129874553. The next prime is 129874573. The reversal of 129874560 is 65478921.

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, 750634 + ... + 750806.

It is an arithmetic number, because the mean of its divisors is an integer number (1796985).

Almost surely, 2^129874560 is an apocalyptic number.

129874560 is a gapful number since it is divisible by the number (10) 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 129874560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230014080).

129874560 is an abundant number, since it is smaller than the sum of its proper divisors (330153600).

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

129874560 is a wasteful number, since it uses less digits than its factorization.

129874560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 129874560 is about 11396.2520154654. The cubic root of 129874560 is about 506.4167126599.

The spelling of 129874560 in words is "one hundred twenty-nine million, eight hundred seventy-four thousand, five hundred sixty".