129830112 has 36 divisors (see below), whose sum is σ = 369205200. Its totient is φ = 43276608.

The previous prime is 129830093. The next prime is 129830131. The reversal of 129830112 is 211038921.

It is an interprime number because it is at equal distance from previous prime (129830093) and next prime (129830131).

It is a tau number, because it is divible by the number of its divisors (36).

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, 225112 + ... + 225687.

It is an arithmetic number, because the mean of its divisors is an integer number (10255700).

Almost surely, 2^129830112 is an apocalyptic number.

129830112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129830112 is an abundant number, since it is smaller than the sum of its proper divisors (239375088).

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

129830112 is a wasteful number, since it uses less digits than its factorization.

129830112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450815 (or 450804 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 129830112 is about 11394.3017337615. The cubic root of 129830112 is about 506.3589343997.

The spelling of 129830112 in words is "one hundred twenty-nine million, eight hundred thirty thousand, one hundred twelve".