129113358 has 64 divisors (see below), whose sum is σ = 291133440. Its totient is φ = 37839200.

The previous prime is 129113263. The next prime is 129113359. The reversal of 129113358 is 853311921.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129113359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276241 + ... + 276707.

It is an arithmetic number, because the mean of its divisors is an integer number (4548960).

Almost surely, 2^129113358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129113358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145566720).

129113358 is an abundant number, since it is smaller than the sum of its proper divisors (162020082).

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

129113358 is a wasteful number, since it uses less digits than its factorization.

129113358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its digits is 6480, while the sum is 33.

The square root of 129113358 is about 11362.8059034730. The cubic root of 129113358 is about 505.4253945924.

The spelling of 129113358 in words is "one hundred twenty-nine million, one hundred thirteen thousand, three hundred fifty-eight".