129244512 has 48 divisors (see below), whose sum is σ = 340623360. Its totient is φ = 42909312.

The previous prime is 129244477. The next prime is 129244513. The reversal of 129244512 is 215442921.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 129244512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129244513) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22689 + ... + 27807.

It is an arithmetic number, because the mean of its divisors is an integer number (7096320).

Almost surely, 2^129244512 is an apocalyptic number.

129244512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129244512 is an abundant number, since it is smaller than the sum of its proper divisors (211378848).

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

129244512 is a wasteful number, since it uses less digits than its factorization.

129244512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5395 (or 5387 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 129244512 is about 11368.5756363759. The cubic root of 129244512 is about 505.5964745655.

The spelling of 129244512 in words is "one hundred twenty-nine million, two hundred forty-four thousand, five hundred twelve".