129686034 has 16 divisors (see below), whose sum is σ = 265698720. Its totient is φ = 42174240.

The previous prime is 129686009. The next prime is 129686041. The reversal of 129686034 is 430686921.

It is a junction number, because it is equal to n+sod(n) for n = 129685983 and 129686001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263344 + ... + 263835.

It is an arithmetic number, because the mean of its divisors is an integer number (16606170).

Almost surely, 2^129686034 is an apocalyptic number.

129686034 is an abundant number, since it is smaller than the sum of its proper divisors (136012686).

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

129686034 is a wasteful number, since it uses less digits than its factorization.

129686034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527225.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 129686034 is about 11387.9776079864. The cubic root of 129686034 is about 506.1715557163.

The spelling of 129686034 in words is "one hundred twenty-nine million, six hundred eighty-six thousand, thirty-four".