129870130 has 32 divisors (see below), whose sum is σ = 265003200. Its totient is φ = 45427392.

The previous prime is 129870127. The next prime is 129870131. The reversal of 129870130 is 31078921.

It is a junction number, because it is equal to n+sod(n) for n = 129870092 and 129870101.

It is not an unprimeable number, because it can be changed into a prime (129870131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23820 + ... + 28759.

It is an arithmetic number, because the mean of its divisors is an integer number (8281350).

Almost surely, 2^129870130 is an apocalyptic number.

129870130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129870130 is an abundant number, since it is smaller than the sum of its proper divisors (135133070).

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

129870130 is a wasteful number, since it uses less digits than its factorization.

129870130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52618.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 129870130 is about 11396.0576516618. The cubic root of 129870130 is about 506.4109546640.

The spelling of 129870130 in words is "one hundred twenty-nine million, eight hundred seventy thousand, one hundred thirty".