129488316 has 12 divisors (see below), whose sum is σ = 302139432. Its totient is φ = 43162768.

The previous prime is 129488267. The next prime is 129488323. The reversal of 129488316 is 613884921.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 5395335 + ... + 5395358.

It is an arithmetic number, because the mean of its divisors is an integer number (25178286).

Almost surely, 2^129488316 is an apocalyptic number.

It is an amenable number.

129488316 is an abundant number, since it is smaller than the sum of its proper divisors (172651116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129488316 is a wasteful number, since it uses less digits than its factorization.

129488316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10790700 (or 10790698 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 129488316 is about 11379.2932996738. The cubic root of 129488316 is about 505.9141902221.

The spelling of 129488316 in words is "one hundred twenty-nine million, four hundred eighty-eight thousand, three hundred sixteen".