129984752 has 10 divisors (see below), whose sum is σ = 251845488. Its totient is φ = 64992368.

The previous prime is 129984731. The next prime is 129984763. The reversal of 129984752 is 257489921.

It is a junction number, because it is equal to n+sod(n) for n = 129984697 and 129984706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4062008 + ... + 4062039.

Almost surely, 2^129984752 is an apocalyptic number.

It is an amenable number.

129984752 is a deficient number, since it is larger than the sum of its proper divisors (121860736).

129984752 is an equidigital number, since it uses as much as digits as its factorization.

129984752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8124055 (or 8124049 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 129984752 is about 11401.0855623489. The cubic root of 129984752 is about 506.5598951683.

The spelling of 129984752 in words is "one hundred twenty-nine million, nine hundred eighty-four thousand, seven hundred fifty-two".