129189332 has 24 divisors (see below), whose sum is σ = 230079360. Its totient is φ = 63460800.

The previous prime is 129189331. The next prime is 129189337. The reversal of 129189332 is 233981921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129189331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70832 + ... + 72632.

It is an arithmetic number, because the mean of its divisors is an integer number (9586640).

Almost surely, 2^129189332 is an apocalyptic number.

It is an amenable number.

129189332 is a deficient number, since it is larger than the sum of its proper divisors (100890028).

129189332 is a wasteful number, since it uses less digits than its factorization.

129189332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111 (or 2109 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 129189332 is about 11366.1485121390. The cubic root of 129189332 is about 505.5245107496.

The spelling of 129189332 in words is "one hundred twenty-nine million, one hundred eighty-nine thousand, three hundred thirty-two".