128150585 has 4 divisors (see below), whose sum is σ = 153780708. Its totient is φ = 102520464.

The previous prime is 128150567. The next prime is 128150593. The reversal of 128150585 is 585051821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 585051821 = 17 ⋅34414813.

It can be written as a sum of positive squares in 2 ways, for example, as 17732521 + 110418064 = 4211^2 + 10508^2 .

It is a cyclic number.

It is not a de Polignac number, because 128150585 - 2⁶ = 128150521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12815054 + ... + 12815063.

It is an arithmetic number, because the mean of its divisors is an integer number (38445177).

Almost surely, 2^128150585 is an apocalyptic number.

It is an amenable number.

128150585 is a deficient number, since it is larger than the sum of its proper divisors (25630123).

128150585 is an equidigital number, since it uses as much as digits as its factorization.

128150585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25630122.

The product of its (nonzero) digits is 16000, while the sum is 35.

The square root of 128150585 is about 11320.3615224956. The cubic root of 128150585 is about 504.1659729365.

The spelling of 128150585 in words is "one hundred twenty-eight million, one hundred fifty thousand, five hundred eighty-five".