129325248 has 280 divisors, whose sum is σ = 438881520. Its totient is φ = 37324800.

The previous prime is 129325241. The next prime is 129325271. The reversal of 129325248 is 842523921.

It is a happy number.

129325248 is a `hidden beast` number, since 129 + 3 + 2 + 524 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (129325241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1280398 + ... + 1280498.

It is an arithmetic number, because the mean of its divisors is an integer number (1567434).

Almost surely, 2^129325248 is an apocalyptic number.

129325248 is a gapful number since it is divisible by the number (18) 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 129325248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219440760).

129325248 is an abundant number, since it is smaller than the sum of its proper divisors (309556272).

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

129325248 is a wasteful number, since it uses less digits than its factorization.

129325248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 138 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 129325248 is about 11372.1259226233. The cubic root of 129325248 is about 505.7017307180.

The spelling of 129325248 in words is "one hundred twenty-nine million, three hundred twenty-five thousand, two hundred forty-eight".