129303104 has 56 divisors (see below), whose sum is σ = 294436800. Its totient is φ = 55190016.

The previous prime is 129303101. The next prime is 129303131. The reversal of 129303104 is 401303921.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 129303104.

It is not an unprimeable number, because it can be changed into a prime (129303101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155939 + ... + 156765.

It is an arithmetic number, because the mean of its divisors is an integer number (5257800).

Almost surely, 2^129303104 is an apocalyptic number.

129303104 is a gapful number since it is divisible by the number (14) 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 129303104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147218400).

129303104 is an abundant number, since it is smaller than the sum of its proper divisors (165133696).

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

129303104 is an equidigital number, since it uses as much as digits as its factorization.

129303104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 129303104 is about 11371.1522723073. The cubic root of 129303104 is about 505.6728657734.

The spelling of 129303104 in words is "one hundred twenty-nine million, three hundred three thousand, one hundred four".