129003787252 has 12 divisors (see below), whose sum is σ = 233039099776. Its totient is φ = 62421187320.

The previous prime is 129003787249. The next prime is 129003787273. The reversal of 129003787252 is 252787300921.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 520176438 + ... + 520176685.

Almost surely, 2^129003787252 is an apocalyptic number.

It is an amenable number.

129003787252 is a deficient number, since it is larger than the sum of its proper divisors (104035312524).

129003787252 is a wasteful number, since it uses less digits than its factorization.

129003787252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040353158 (or 1040353156 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 129003787252 in words is "one hundred twenty-nine billion, three million, seven hundred eighty-seven thousand, two hundred fifty-two".