128032751 has 24 divisors (see below), whose sum is σ = 162210432. Its totient is φ = 98172000.

The previous prime is 128032739. The next prime is 128032757. The reversal of 128032751 is 157230821.

It is not a de Polignac number, because 128032751 - 2²⁶ = 60923887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128032757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 785396 + ... + 785558.

It is an arithmetic number, because the mean of its divisors is an integer number (6758768).

Almost surely, 2^128032751 is an apocalyptic number.

128032751 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

128032751 is a deficient number, since it is larger than the sum of its proper divisors (34177681).

128032751 is a wasteful number, since it uses less digits than its factorization.

128032751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 128032751 is about 11315.1558097978. The cubic root of 128032751 is about 504.0113992866.

The spelling of 128032751 in words is "one hundred twenty-eight million, thirty-two thousand, seven hundred fifty-one".