129944 has 16 divisors (see below), whose sum is σ = 250800. Its totient is φ = 63072.

The previous prime is 129937. The next prime is 129953. The reversal of 129944 is 449921.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 129944.

It is an unprimeable number.

129944 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77 + ... + 515.

It is an arithmetic number, because the mean of its divisors is an integer number (15675).

2¹²⁹⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

129944 is a deficient number, since it is larger than the sum of its proper divisors (120856).

129944 is a wasteful number, since it uses less digits than its factorization.

129944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 478 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 129944 is about 360.4774611540. The cubic root of 129944 is about 50.6506951813.

The spelling of 129944 in words is "one hundred twenty-nine thousand, nine hundred forty-four".