128874757 has 8 divisors (see below), whose sum is σ = 140682240. Its totient is φ = 117082560.

The previous prime is 128874709. The next prime is 128874769. The reversal of 128874757 is 757478821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128874757 - 2¹⁵ = 128841989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128874757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128874797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20668 + ... + 26170.

It is an arithmetic number, because the mean of its divisors is an integer number (17585280).

Almost surely, 2^128874757 is an apocalyptic number.

It is an amenable number.

128874757 is a deficient number, since it is larger than the sum of its proper divisors (11807483).

128874757 is a wasteful number, since it uses less digits than its factorization.

128874757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7643.

The product of its digits is 878080, while the sum is 49.

The square root of 128874757 is about 11352.3018370725. The cubic root of 128874757 is about 505.1138611999.

The spelling of 128874757 in words is "one hundred twenty-eight million, eight hundred seventy-four thousand, seven hundred fifty-seven".