129259 has 8 divisors (see below), whose sum is σ = 142352. Its totient is φ = 116640.

The previous prime is 129229. The next prime is 129263. The reversal of 129259 is 952921.

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 129259 - 2⁹ = 128747 is a prime.

It is a Duffinian number.

129259 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712 + ... + 874.

It is an arithmetic number, because the mean of its divisors is an integer number (17794).

2¹²⁹²⁵⁹ is an apocalyptic number.

129259 is a deficient number, since it is larger than the sum of its proper divisors (13093).

129259 is a wasteful number, since it uses less digits than its factorization.

129259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237.

The product of its digits is 1620, while the sum is 28.

The square root of 129259 is about 359.5260769402. The cubic root of 129259 is about 50.5615365911.

It can be divided in two parts, 129 and 259, that multiplied together give a triangular number (33411 = T₂₅₈).

The spelling of 129259 in words is "one hundred twenty-nine thousand, two hundred fifty-nine".