129091152 has 20 divisors (see below), whose sum is σ = 333485600. Its totient is φ = 43030368.

The previous prime is 129091133. The next prime is 129091159. The reversal of 129091152 is 251190921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129091159) 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 3 ways as a sum of consecutive naturals, for example, 1344652 + ... + 1344747.

It is an arithmetic number, because the mean of its divisors is an integer number (16674280).

Almost surely, 2^129091152 is an apocalyptic number.

129091152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129091152 is an abundant number, since it is smaller than the sum of its proper divisors (204394448).

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

129091152 is a wasteful number, since it uses less digits than its factorization.

129091152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689410 (or 2689404 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 129091152 is about 11361.8287260458. The cubic root of 129091152 is about 505.3964171626.

The spelling of 129091152 in words is "one hundred twenty-nine million, ninety-one thousand, one hundred fifty-two".