129188 has 6 divisors (see below), whose sum is σ = 226086. Its totient is φ = 64592.

The previous prime is 129187. The next prime is 129193. The reversal of 129188 is 881921.

It can be written as a sum of positive squares in only one way, i.e., 128164 + 1024 = 358^2 + 32^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 129188.

It is not an unprimeable number, because it can be changed into a prime (129187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16145 + ... + 16152.

It is an arithmetic number, because the mean of its divisors is an integer number (37681).

2¹²⁹¹⁸⁸ is an apocalyptic number.

It is an amenable number.

129188 is a deficient number, since it is larger than the sum of its proper divisors (96898).

129188 is a wasteful number, since it uses less digits than its factorization.

129188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32301 (or 32299 counting only the distinct ones).

The product of its digits is 1152, while the sum is 29.

The square root of 129188 is about 359.4273222781. The cubic root of 129188 is about 50.5522773349.

The spelling of 129188 in words is "one hundred twenty-nine thousand, one hundred eighty-eight".