129559 has 8 divisors (see below), whose sum is σ = 139392. Its totient is φ = 120120.

The previous prime is 129553. The next prime is 129581. The reversal of 129559 is 955921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129559 - 2⁵ = 129527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129553) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 924 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (17424).

2¹²⁹⁵⁵⁹ is an apocalyptic number.

129559 is a deficient number, since it is larger than the sum of its proper divisors (9833).

129559 is a wasteful number, since it uses less digits than its factorization.

129559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197.

The product of its digits is 4050, while the sum is 31.

The square root of 129559 is about 359.9430510511. The cubic root of 129559 is about 50.6006228214.

The spelling of 129559 in words is "one hundred twenty-nine thousand, five hundred fifty-nine".