128452158 has 48 divisors (see below), whose sum is σ = 288916992. Its totient is φ = 41202000.

The previous prime is 128452157. The next prime is 128452193. The reversal of 128452158 is 851254821.

128452158 is a `hidden beast` number, since 1 + 2 + 84 + 521 + 58 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128452151) 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 23 ways as a sum of consecutive naturals, for example, 117193 + ... + 118283.

It is an arithmetic number, because the mean of its divisors is an integer number (6019104).

Almost surely, 2^128452158 is an apocalyptic number.

128452158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128452158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144458496).

128452158 is an abundant number, since it is smaller than the sum of its proper divisors (160464834).

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

128452158 is a wasteful number, since it uses less digits than its factorization.

128452158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341 (or 1338 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 128452158 is about 11333.6736321459. The cubic root of 128452158 is about 504.5611427665.

The spelling of 128452158 in words is "one hundred twenty-eight million, four hundred fifty-two thousand, one hundred fifty-eight".