239129 has 4 divisors (see below), whose sum is σ = 260880. Its totient is φ = 217380.

The previous prime is 239119. The next prime is 239137. The reversal of 239129 is 921932.

239129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 239098 and 239107.

It is not an unprimeable number, because it can be changed into a prime (239119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10859 + ... + 10880.

It is an arithmetic number, because the mean of its divisors is an integer number (65220).

2²³⁹¹²⁹ is an apocalyptic number.

It is an amenable number.

239129 is a deficient number, since it is larger than the sum of its proper divisors (21751).

239129 is a wasteful number, since it uses less digits than its factorization.

239129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21750.

The product of its digits is 972, while the sum is 26.

The square root of 239129 is about 489.0081798907. The cubic root of 239129 is about 62.0693812268.

The spelling of 239129 in words is "two hundred thirty-nine thousand, one hundred twenty-nine".