129843126 has 48 divisors (see below), whose sum is σ = 322483200. Its totient is φ = 36986544.

The previous prime is 129843113. The next prime is 129843151. The reversal of 129843126 is 621348921.

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 23 ways as a sum of consecutive naturals, for example, 46395 + ... + 49113.

It is an arithmetic number, because the mean of its divisors is an integer number (6718400).

Almost surely, 2^129843126 is an apocalyptic number.

129843126 is an abundant number, since it is smaller than the sum of its proper divisors (192640074).

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

129843126 is a wasteful number, since it uses less digits than its factorization.

129843126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113 (or 3110 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 129843126 is about 11394.8727943755. The cubic root of 129843126 is about 506.3758527527.

It can be divided in two parts, 12984 and 3126, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 129843126 in words is "one hundred twenty-nine million, eight hundred forty-three thousand, one hundred twenty-six".