100129180 has 12 divisors (see below), whose sum is σ = 210271320. Its totient is φ = 40051664.

The previous prime is 100129177. The next prime is 100129181. The reversal of 100129180 is 81921001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100129181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503210 + ... + 2503249.

It is an arithmetic number, because the mean of its divisors is an integer number (17522610).

Almost surely, 2^100129180 is an apocalyptic number.

100129180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100129180 is an abundant number, since it is smaller than the sum of its proper divisors (110142140).

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

100129180 is a wasteful number, since it uses less digits than its factorization.

100129180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006468 (or 5006466 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 100129180 is about 10006.4569154122. The cubic root of 100129180 is about 464.3586641755.

The spelling of 100129180 in words is "one hundred million, one hundred twenty-nine thousand, one hundred eighty".