129055252 has 6 divisors (see below), whose sum is σ = 225846698. Its totient is φ = 64527624.

The previous prime is 129055219. The next prime is 129055253. The reversal of 129055252 is 252550921.

It can be written as a sum of positive squares in only one way, i.e., 127328656 + 1726596 = 11284^2 + 1314^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129055253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16131903 + ... + 16131910.

Almost surely, 2^129055252 is an apocalyptic number.

It is an amenable number.

129055252 is a deficient number, since it is larger than the sum of its proper divisors (96791446).

129055252 is a wasteful number, since it uses less digits than its factorization.

129055252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32263817 (or 32263815 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 129055252 is about 11360.2487648819. The cubic root of 129055252 is about 505.3495628965.

The spelling of 129055252 in words is "one hundred twenty-nine million, fifty-five thousand, two hundred fifty-two".