129325000 has 96 divisors (see below), whose sum is σ = 346852800. Its totient is φ = 44280000.

The previous prime is 129324973. The next prime is 129325013. The reversal of 129325000 is 523921.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174631 + ... + 175369.

It is an arithmetic number, because the mean of its divisors is an integer number (3613050).

Almost surely, 2^129325000 is an apocalyptic number.

129325000 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 129325000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173426400).

129325000 is an abundant number, since it is smaller than the sum of its proper divisors (217527800).

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

129325000 is an frugal number, since it uses more digits than its factorization.

129325000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 129325000 is about 11372.1150187641. The cubic root of 129325000 is about 505.7014074655.

Adding to 129325000 its reverse (523921), we get a palindrome (129848921).

The spelling of 129325000 in words is "one hundred twenty-nine million, three hundred twenty-five thousand".