129315424 has 96 divisors (see below), whose sum is σ = 303077376. Its totient is φ = 53168640.

The previous prime is 129315409. The next prime is 129315443. The reversal of 129315424 is 424513921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747402 + ... + 747574.

It is an arithmetic number, because the mean of its divisors is an integer number (3157056).

Almost surely, 2^129315424 is an apocalyptic number.

129315424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129315424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151538688).

129315424 is an abundant number, since it is smaller than the sum of its proper divisors (173761952).

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

129315424 is a wasteful number, since it uses less digits than its factorization.

129315424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 300 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 129315424 is about 11371.6939811094. The cubic root of 129315424 is about 505.6889254339.

The spelling of 129315424 in words is "one hundred twenty-nine million, three hundred fifteen thousand, four hundred twenty-four".