129790512 has 200 divisors, whose sum is σ = 409969296. Its totient is φ = 39481344.

The previous prime is 129790489. The next prime is 129790517. The reversal of 129790512 is 215097921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (129790517) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 947308 + ... + 947444.

Almost surely, 2^129790512 is an apocalyptic number.

129790512 is a gapful number since it is divisible by the number (12) 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 129790512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204984648).

129790512 is an abundant number, since it is smaller than the sum of its proper divisors (280178784).

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

129790512 is a wasteful number, since it uses less digits than its factorization.

129790512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 129790512 is about 11392.5638905384. The cubic root of 129790512 is about 506.3074469789.

It can be divided in two parts, 1297 and 90512, that added together give a square (91809 = 303²).

The spelling of 129790512 in words is "one hundred twenty-nine million, seven hundred ninety thousand, five hundred twelve".