129144 has 16 divisors (see below), whose sum is σ = 322920. Its totient is φ = 43040.

The previous prime is 129127. The next prime is 129169. The reversal of 129144 is 441921.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 129144.

It is a congruent number.

It is an unprimeable number.

129144 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2667 + ... + 2714.

2¹²⁹¹⁴⁴ is an apocalyptic number.

It is an amenable number.

129144 is an abundant number, since it is smaller than the sum of its proper divisors (193776).

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

129144 is a wasteful number, since it uses less digits than its factorization.

129144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390 (or 5386 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 129144 is about 359.3661085857. The cubic root of 129144 is about 50.5465375015.

The spelling of 129144 in words is "one hundred twenty-nine thousand, one hundred forty-four".