128748582 has 32 divisors (see below), whose sum is σ = 302940000. Its totient is φ = 40391424.

The previous prime is 128748553. The next prime is 128748589. The reversal of 128748582 is 285847821.

It is a happy number.

128748582 is a `hidden beast` number, since 1 + 28 + 7 + 48 + 582 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128748589) 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 15 ways as a sum of consecutive naturals, for example, 69207 + ... + 71042.

It is an arithmetic number, because the mean of its divisors is an integer number (9466875).

Almost surely, 2^128748582 is an apocalyptic number.

128748582 is an abundant number, since it is smaller than the sum of its proper divisors (174191418).

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

128748582 is a wasteful number, since it uses less digits than its factorization.

128748582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140277 (or 140271 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 128748582 is about 11346.7432331925. The cubic root of 128748582 is about 504.9489632440.

The spelling of 128748582 in words is "one hundred twenty-eight million, seven hundred forty-eight thousand, five hundred eighty-two".