129541104 has 180 divisors, whose sum is σ = 460338840. Its totient is φ = 33626880.

The previous prime is 129541103. The next prime is 129541109. The reversal of 129541104 is 401145921.

129541104 is a `hidden beast` number, since 12 + 9 + 541 + 104 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129541103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 76782 + ... + 78450.

It is an arithmetic number, because the mean of its divisors is an integer number (2557438).

Almost surely, 2^129541104 is an apocalyptic number.

129541104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129541104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230169420).

129541104 is an abundant number, since it is smaller than the sum of its proper divisors (330797736).

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

129541104 is a wasteful number, since it uses less digits than its factorization.

129541104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 129541104 is about 11381.6125395306. The cubic root of 129541104 is about 505.9829289079.

The spelling of 129541104 in words is "one hundred twenty-nine million, five hundred forty-one thousand, one hundred four".