129815060 has 48 divisors (see below), whose sum is σ = 290304000. Its totient is φ = 48591360.

The previous prime is 129815057. The next prime is 129815083. The reversal of 129815060 is 60518921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63941 + ... + 65939.

It is an arithmetic number, because the mean of its divisors is an integer number (6048000).

Almost surely, 2^129815060 is an apocalyptic number.

129815060 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 129815060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145152000).

129815060 is an abundant number, since it is smaller than the sum of its proper divisors (160488940).

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

129815060 is a wasteful number, since it uses less digits than its factorization.

129815060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 129815060 is about 11393.6412090253. The cubic root of 129815060 is about 506.3393652126.

The spelling of 129815060 in words is "one hundred twenty-nine million, eight hundred fifteen thousand, sixty".