129852429 has 8 divisors (see below), whose sum is σ = 197870400. Its totient is φ = 74201376.

The previous prime is 129852427. The next prime is 129852433. The reversal of 129852429 is 924258921.

It is a happy number.

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

It is not a de Polignac number, because 129852429 - 2¹ = 129852427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129852427) 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, 3091704 + ... + 3091745.

It is an arithmetic number, because the mean of its divisors is an integer number (24733800).

Almost surely, 2^129852429 is an apocalyptic number.

It is an amenable number.

129852429 is a deficient number, since it is larger than the sum of its proper divisors (68017971).

129852429 is an equidigital number, since it uses as much as digits as its factorization.

129852429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183459.

The product of its digits is 103680, while the sum is 42.

The square root of 129852429 is about 11395.2809969741. The cubic root of 129852429 is about 506.3879460692.

The spelling of 129852429 in words is "one hundred twenty-nine million, eight hundred fifty-two thousand, four hundred twenty-nine".