128535593 has 2 divisors, whose sum is σ = 128535594. Its totient is φ = 128535592.

The previous prime is 128535587. The next prime is 128535611. The reversal of 128535593 is 395535821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120055849 + 8479744 = 10957^2 + 2912^2 .

It is a cyclic number.

It is not a de Polignac number, because 128535593 - 2¹² = 128531497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128535593.

It is not a weakly prime, because it can be changed into another prime (128531593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64267796 + 64267797.

It is an arithmetic number, because the mean of its divisors is an integer number (64267797).

Almost surely, 2^128535593 is an apocalyptic number.

It is an amenable number.

128535593 is a deficient number, since it is larger than the sum of its proper divisors (1).

128535593 is an equidigital number, since it uses as much as digits as its factorization.

128535593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 41.

The square root of 128535593 is about 11337.3538799845. The cubic root of 128535593 is about 504.6703635796.

The spelling of 128535593 in words is "one hundred twenty-eight million, five hundred thirty-five thousand, five hundred ninety-three".