129606 has 8 divisors (see below), whose sum is σ = 259224. Its totient is φ = 43200.

The previous prime is 129593. The next prime is 129607. The reversal of 129606 is 606921.

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

129606 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10795 + ... + 10806.

It is an arithmetic number, because the mean of its divisors is an integer number (32403).

129606 is a Friedman number, since it can be written as 90^2*16+6, using all its digits and the basic arithmetic operations.

2¹²⁹⁶⁰⁶ is an apocalyptic number.

129606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129606 is a wasteful number, since it uses less digits than its factorization.

129606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21606.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 129606 is about 360.0083332369. The cubic root of 129606 is about 50.6067408622.

The spelling of 129606 in words is "one hundred twenty-nine thousand, six hundred six".