129923202 has 16 divisors (see below), whose sum is σ = 260230752. Its totient is φ = 43243680.

The previous prime is 129923191. The next prime is 129923203. The reversal of 129923202 is 202329921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 129923202.

It is not an unprimeable number, because it can be changed into a prime (129923203) 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, 11523 + ... + 19814.

It is an arithmetic number, because the mean of its divisors is an integer number (16264422).

Almost surely, 2^129923202 is an apocalyptic number.

129923202 is an abundant number, since it is smaller than the sum of its proper divisors (130307550).

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

129923202 is a wasteful number, since it uses less digits than its factorization.

129923202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32033.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 129923202 is about 11398.3859383686. The cubic root of 129923202 is about 506.4799276244.

The spelling of 129923202 in words is "one hundred twenty-nine million, nine hundred twenty-three thousand, two hundred two".