129906118 has 8 divisors (see below), whose sum is σ = 195412248. Its totient is φ = 64768704.

The previous prime is 129906113. The next prime is 129906131. The reversal of 129906118 is 811609921.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129906113) 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 3 ways as a sum of consecutive naturals, for example, 91296 + ... + 92707.

It is an arithmetic number, because the mean of its divisors is an integer number (24426531).

Almost surely, 2^129906118 is an apocalyptic number.

129906118 is a deficient number, since it is larger than the sum of its proper divisors (65506130).

129906118 is a wasteful number, since it uses less digits than its factorization.

129906118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184358.

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 129906118 is about 11397.6365093821. The cubic root of 129906118 is about 506.4577271187.

The spelling of 129906118 in words is "one hundred twenty-nine million, nine hundred six thousand, one hundred eighteen".