129667230 has 288 divisors, whose sum is σ = 447582240. Its totient is φ = 26943840.

The previous prime is 129667217. The next prime is 129667247. The reversal of 129667230 is 32766921.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11787925 + ... + 11787935.

It is an arithmetic number, because the mean of its divisors is an integer number (1554105).

Almost surely, 2^129667230 is an apocalyptic number.

129667230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 129667230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223791120).

129667230 is an abundant number, since it is smaller than the sum of its proper divisors (317915010).

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

129667230 is an equidigital number, since it uses as much as digits as its factorization.

129667230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 129667230 is about 11387.1519705324. The cubic root of 129667230 is about 506.1470901932.

The spelling of 129667230 in words is "one hundred twenty-nine million, six hundred sixty-seven thousand, two hundred thirty".