129134070 has 192 divisors, whose sum is σ = 393382080. Its totient is φ = 29113344.

The previous prime is 129134069. The next prime is 129134081. The reversal of 129134070 is 70431921.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 822432 + ... + 822588.

It is an arithmetic number, because the mean of its divisors is an integer number (2048865).

Almost surely, 2^129134070 is an apocalyptic number.

129134070 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 129134070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196691040).

129134070 is an abundant number, since it is smaller than the sum of its proper divisors (264248010).

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

129134070 is a wasteful number, since it uses less digits than its factorization.

129134070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 129134070 is about 11363.7172615302. The cubic root of 129134070 is about 505.4524194518.

Adding to 129134070 its reverse (70431921), we get a palindrome (199565991).

The spelling of 129134070 in words is "one hundred twenty-nine million, one hundred thirty-four thousand, seventy".