129036239 has 8 divisors (see below), whose sum is σ = 143817840. Its totient is φ = 115053696.

The previous prime is 129036227. The next prime is 129036253. The reversal of 129036239 is 932630921.

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 129036239 - 2⁴ = 129036223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129036199 and 129036208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129036209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199424 + ... + 200069.

It is an arithmetic number, because the mean of its divisors is an integer number (17977230).

Almost surely, 2^129036239 is an apocalyptic number.

129036239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

129036239 is a deficient number, since it is larger than the sum of its proper divisors (14781601).

129036239 is a wasteful number, since it uses less digits than its factorization.

129036239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399529.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 129036239 is about 11359.4119125948. The cubic root of 129036239 is about 505.3247448878.

The spelling of 129036239 in words is "one hundred twenty-nine million, thirty-six thousand, two hundred thirty-nine".