129053800 has 48 divisors (see below), whose sum is σ = 317708460. Its totient is φ = 48583680.

The previous prime is 129053791. The next prime is 129053801. The reversal of 129053800 is 8350921.

It can be written as a sum of positive squares in 6 ways, for example, as 25462116 + 103591684 = 5046^2 + 10178^2 .

It is not an unprimeable number, because it can be changed into a prime (129053801) 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 11 ways as a sum of consecutive naturals, for example, 15579 + ... + 22378.

Almost surely, 2^129053800 is an apocalyptic number.

129053800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129053800 is an abundant number, since it is smaller than the sum of its proper divisors (188654660).

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

129053800 is a wasteful number, since it uses less digits than its factorization.

129053800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37990 (or 37981 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 129053800 is about 11360.1848576509. The cubic root of 129053800 is about 505.3476676609.

The spelling of 129053800 in words is "one hundred twenty-nine million, fifty-three thousand, eight hundred".