129059970 has 64 divisors (see below), whose sum is σ = 351146880. Its totient is φ = 30094848.

The previous prime is 129059939. The next prime is 129059981. The reversal of 129059970 is 79950921.

It is a Curzon 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, 1299 + ... + 16118.

It is an arithmetic number, because the mean of its divisors is an integer number (5486670).

Almost surely, 2^129059970 is an apocalyptic number.

129059970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 129059970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175573440).

129059970 is an abundant number, since it is smaller than the sum of its proper divisors (222086910).

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

129059970 is a wasteful number, since it uses less digits than its factorization.

129059970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17459.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 129059970 is about 11360.4564168875. The cubic root of 129059970 is about 505.3557210088.

The spelling of 129059970 in words is "one hundred twenty-nine million, fifty-nine thousand, nine hundred seventy".