128104757 has 16 divisors (see below), whose sum is σ = 142359360. Its totient is φ = 115259760.

The previous prime is 128104723. The next prime is 128104771. The reversal of 128104757 is 757401821.

It is not a de Polignac number, because 128104757 - 2¹⁰ = 128103733 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128134757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144638 + ... + 145520.

It is an arithmetic number, because the mean of its divisors is an integer number (8897460).

Almost surely, 2^128104757 is an apocalyptic number.

It is an amenable number.

128104757 is a deficient number, since it is larger than the sum of its proper divisors (14254603).

128104757 is an equidigital number, since it uses as much as digits as its factorization.

128104757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 128104757 is about 11318.3372011970. The cubic root of 128104757 is about 504.1058674158.

The spelling of 128104757 in words is "one hundred twenty-eight million, one hundred four thousand, seven hundred fifty-seven".