128450759 has 4 divisors (see below), whose sum is σ = 136006704. Its totient is φ = 120894816.

The previous prime is 128450753. The next prime is 128450767. The reversal of 128450759 is 957054821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 957054821 = 8933 ⋅107137.

It is a cyclic number.

It is not a de Polignac number, because 128450759 - 2⁴ = 128450743 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 (128450753) 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 3 ways as a sum of consecutive naturals, for example, 3777947 + ... + 3777980.

It is an arithmetic number, because the mean of its divisors is an integer number (34001676).

Almost surely, 2^128450759 is an apocalyptic number.

128450759 is a deficient number, since it is larger than the sum of its proper divisors (7555945).

128450759 is an equidigital number, since it uses as much as digits as its factorization.

128450759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7555944.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 128450759 is about 11333.6119132428. The cubic root of 128450759 is about 504.5593109986.

The spelling of 128450759 in words is "one hundred twenty-eight million, four hundred fifty thousand, seven hundred fifty-nine".