128273152 has 72 divisors (see below), whose sum is σ = 299045376. Its totient is φ = 53769216.

The previous prime is 128273137. The next prime is 128273153. The reversal of 128273152 is 251372821.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (128273153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83463 + ... + 84985.

It is an arithmetic number, because the mean of its divisors is an integer number (4153408).

Almost surely, 2^128273152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128273152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149522688).

128273152 is an abundant number, since it is smaller than the sum of its proper divisors (170772224).

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

128273152 is an equidigital number, since it uses as much as digits as its factorization.

128273152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593 (or 1579 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 128273152 is about 11325.7737925495. The cubic root of 128273152 is about 504.3266547903.

The spelling of 128273152 in words is "one hundred twenty-eight million, two hundred seventy-three thousand, one hundred fifty-two".