129239159 has 8 divisors (see below), whose sum is σ = 155475840. Its totient is φ = 104945976.

The previous prime is 129239141. The next prime is 129239161. The reversal of 129239159 is 951932921.

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 129239159 - 2⁸ = 129238903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129235159) 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, 485729 + ... + 485994.

It is an arithmetic number, because the mean of its divisors is an integer number (19434480).

Almost surely, 2^129239159 is an apocalyptic number.

129239159 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

129239159 is a deficient number, since it is larger than the sum of its proper divisors (26236681).

129239159 is an equidigital number, since it uses as much as digits as its factorization.

129239159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971749.

The product of its digits is 43740, while the sum is 41.

The square root of 129239159 is about 11368.3402042690. The cubic root of 129239159 is about 505.5894942683.

The spelling of 129239159 in words is "one hundred twenty-nine million, two hundred thirty-nine thousand, one hundred fifty-nine".