129403682 has 8 divisors (see below), whose sum is σ = 194918400. Its totient is φ = 64430884.

The previous prime is 129403649. The next prime is 129403691. The reversal of 129403682 is 286304921.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134882 + ... + 135837.

It is an arithmetic number, because the mean of its divisors is an integer number (24364800).

Almost surely, 2^129403682 is an apocalyptic number.

129403682 is a deficient number, since it is larger than the sum of its proper divisors (65514718).

129403682 is a wasteful number, since it uses less digits than its factorization.

129403682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270960.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 129403682 is about 11375.5739195875. The cubic root of 129403682 is about 505.8039437925.

The spelling of 129403682 in words is "one hundred twenty-nine million, four hundred three thousand, six hundred eighty-two".