129159888 has 160 divisors (see below), whose sum is σ = 405307392. Its totient is φ = 34905600.

The previous prime is 129159883. The next prime is 129159907. The reversal of 129159888 is 888951921.

It is a self number, because there is not a number n which added to its sum of digits gives 129159888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129159883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212481 + ... + 213087.

Almost surely, 2^129159888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129159888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202653696).

129159888 is an abundant number, since it is smaller than the sum of its proper divisors (276147504).

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

129159888 is a wasteful number, since it uses less digits than its factorization.

129159888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 667 counting only the distinct ones).

The product of its digits is 414720, while the sum is 51.

The square root of 129159888 is about 11364.8531886690. The cubic root of 129159888 is about 505.4861025353.

The spelling of 129159888 in words is "one hundred twenty-nine million, one hundred fifty-nine thousand, eight hundred eighty-eight".