129882387 has 8 divisors (see below), whose sum is σ = 179148240. Its totient is φ = 83602400.

The previous prime is 129882373. The next prime is 129882391. The reversal of 129882387 is 783288921.

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

It is a cyclic number.

It is not a de Polignac number, because 129882387 - 2⁶ = 129882323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129882307) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 746364 + ... + 746537.

It is an arithmetic number, because the mean of its divisors is an integer number (22393530).

Almost surely, 2^129882387 is an apocalyptic number.

129882387 is a deficient number, since it is larger than the sum of its proper divisors (49265853).

129882387 is a wasteful number, since it uses less digits than its factorization.

129882387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492933.

The product of its digits is 387072, while the sum is 48.

The square root of 129882387 is about 11396.5954126660. The cubic root of 129882387 is about 506.4268856658.

The spelling of 129882387 in words is "one hundred twenty-nine million, eight hundred eighty-two thousand, three hundred eighty-seven".