129493876 has 12 divisors (see below), whose sum is σ = 226703008. Its totient is φ = 64721592.

The previous prime is 129493831. The next prime is 129493891. The reversal of 129493876 is 678394921.

129493876 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 9625 + ... + 18751.

Almost surely, 2^129493876 is an apocalyptic number.

It is an amenable number.

129493876 is a deficient number, since it is larger than the sum of its proper divisors (97209132).

129493876 is a wasteful number, since it uses less digits than its factorization.

129493876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12678 (or 12676 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 129493876 is about 11379.5376004476. The cubic root of 129493876 is about 505.9214311396.

The spelling of 129493876 in words is "one hundred twenty-nine million, four hundred ninety-three thousand, eight hundred seventy-six".