129090882 has 32 divisors (see below), whose sum is σ = 267264000. Its totient is φ = 41524560.

The previous prime is 129090869. The next prime is 129090889. The reversal of 129090882 is 288090921.

It is a self number, because there is not a number n which added to its sum of digits gives 129090882.

It is not an unprimeable number, because it can be changed into a prime (129090889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85369 + ... + 86867.

It is an arithmetic number, because the mean of its divisors is an integer number (8352000).

Almost surely, 2^129090882 is an apocalyptic number.

129090882 is an abundant number, since it is smaller than the sum of its proper divisors (138173118).

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

129090882 is a wasteful number, since it uses less digits than its factorization.

129090882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 129090882 is about 11361.8168441495. The cubic root of 129090882 is about 505.3960648092.

Adding to 129090882 its sum of digits (39), we get a palindrome (129090921).

The spelling of 129090882 in words is "one hundred twenty-nine million, ninety thousand, eight hundred eighty-two".