129825360 has 120 divisors (see below), whose sum is σ = 498301440. Its totient is φ = 29673216.

The previous prime is 129825359. The next prime is 129825391. The reversal of 129825360 is 63528921.

129825360 is a `hidden beast` number, since 1 + 298 + 2 + 5 + 360 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7840 + ... + 17919.

It is an arithmetic number, because the mean of its divisors is an integer number (4152512).

Almost surely, 2^129825360 is an apocalyptic number.

129825360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129825360 is an abundant number, since it is smaller than the sum of its proper divisors (368476080).

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

129825360 is a wasteful number, since it uses less digits than its factorization.

129825360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25785 (or 25776 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 129825360 is about 11394.0932065698. The cubic root of 129825360 is about 506.3527564621.

The spelling of 129825360 in words is "one hundred twenty-nine million, eight hundred twenty-five thousand, three hundred sixty".