129050706 has 32 divisors (see below), whose sum is σ = 282106368. Its totient is φ = 39179520.

The previous prime is 129050693. The next prime is 129050729. The reversal of 129050706 is 607050921.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17245 + ... + 23568.

It is an arithmetic number, because the mean of its divisors is an integer number (8815824).

Almost surely, 2^129050706 is an apocalyptic number.

129050706 is an abundant number, since it is smaller than the sum of its proper divisors (153055662).

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

129050706 is a wasteful number, since it uses less digits than its factorization.

129050706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40866.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 129050706 is about 11360.0486794732. The cubic root of 129050706 is about 505.3436291432.

The spelling of 129050706 in words is "one hundred twenty-nine million, fifty thousand, seven hundred six".