129900230 has 48 divisors (see below), whose sum is σ = 257198976. Its totient is φ = 47024640.

The previous prime is 129900209. The next prime is 129900257. The reversal of 129900230 is 32009921.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 129900230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 827312 + ... + 827468.

It is an arithmetic number, because the mean of its divisors is an integer number (5358312).

Almost surely, 2^129900230 is an apocalyptic number.

129900230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129900230 is a deficient number, since it is larger than the sum of its proper divisors (127298746).

129900230 is a wasteful number, since it uses less digits than its factorization.

129900230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 129900230 is about 11397.3782072896. The cubic root of 129900230 is about 506.4500752641.

The spelling of 129900230 in words is "one hundred twenty-nine million, nine hundred thousand, two hundred thirty".