129952424 has 16 divisors (see below), whose sum is σ = 278469600. Its totient is φ = 55693872.

The previous prime is 129952423. The next prime is 129952453. The reversal of 129952424 is 424259921.

It is not an unprimeable number, because it can be changed into a prime (129952421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160234 + ... + 1160345.

It is an arithmetic number, because the mean of its divisors is an integer number (17404350).

Almost surely, 2^129952424 is an apocalyptic number.

129952424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129952424 is an abundant number, since it is smaller than the sum of its proper divisors (148517176).

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

129952424 is a wasteful number, since it uses less digits than its factorization.

129952424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320592 (or 2320588 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 129952424 is about 11399.6677144555. The cubic root of 129952424 is about 506.5178968419.

The spelling of 129952424 in words is "one hundred twenty-nine million, nine hundred fifty-two thousand, four hundred twenty-four".