129744160 has 288 divisors, whose sum is σ = 410235840. Its totient is φ = 38320128.

The previous prime is 129744143. The next prime is 129744161. The reversal of 129744160 is 61447921.

It is not an unprimeable number, because it can be changed into a prime (129744161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1936447 + ... + 1936513.

It is an arithmetic number, because the mean of its divisors is an integer number (1424430).

Almost surely, 2^129744160 is an apocalyptic number.

129744160 is a gapful number since it is divisible by the number (10) 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 129744160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205117920).

129744160 is an abundant number, since it is smaller than the sum of its proper divisors (280491680).

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

129744160 is a wasteful number, since it uses less digits than its factorization.

129744160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 129744160 is about 11390.5293994616. The cubic root of 129744160 is about 506.2471673875.

The spelling of 129744160 in words is "one hundred twenty-nine million, seven hundred forty-four thousand, one hundred sixty".