129388152 has 16 divisors (see below), whose sum is σ = 323470440. Its totient is φ = 43129376.

The previous prime is 129388109. The next prime is 129388159. The reversal of 129388152 is 251883921.

It is a self number, because there is not a number n which added to its sum of digits gives 129388152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129388159) 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, 2695563 + ... + 2695610.

Almost surely, 2^129388152 is an apocalyptic number.

129388152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129388152 is an abundant number, since it is smaller than the sum of its proper divisors (194082288).

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

129388152 is a wasteful number, since it uses less digits than its factorization.

129388152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5391182 (or 5391178 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 129388152 is about 11374.8912961839. The cubic root of 129388152 is about 505.7837087951.

The spelling of 129388152 in words is "one hundred twenty-nine million, three hundred eighty-eight thousand, one hundred fifty-two".