129425300 has 18 divisors (see below), whose sum is σ = 280853118. Its totient is φ = 51770080.

The previous prime is 129425281. The next prime is 129425323. The reversal of 129425300 is 3524921.

It can be written as a sum of positive squares in 3 ways, for example, as 27899524 + 101525776 = 5282^2 + 10076^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 129425300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 647027 + ... + 647226.

It is an arithmetic number, because the mean of its divisors is an integer number (15602951).

Almost surely, 2^129425300 is an apocalyptic number.

129425300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129425300 is an abundant number, since it is smaller than the sum of its proper divisors (151427818).

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

129425300 is a wasteful number, since it uses less digits than its factorization.

129425300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294267 (or 1294260 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 129425300 is about 11376.5240737230. The cubic root of 129425300 is about 505.8321085265.

The spelling of 129425300 in words is "one hundred twenty-nine million, four hundred twenty-five thousand, three hundred".