128795527 has 4 divisors (see below), whose sum is σ = 147194896. Its totient is φ = 110396160.

The previous prime is 128795521. The next prime is 128795531. The reversal of 128795527 is 725597821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-128795527 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 (128795521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9199674 + ... + 9199687.

It is an arithmetic number, because the mean of its divisors is an integer number (36798724).

Almost surely, 2^128795527 is an apocalyptic number.

128795527 is a deficient number, since it is larger than the sum of its proper divisors (18399369).

128795527 is an equidigital number, since it uses as much as digits as its factorization.

128795527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18399368.

The product of its digits is 352800, while the sum is 46.

The square root of 128795527 is about 11348.8116999094. The cubic root of 128795527 is about 505.0103281879.

The spelling of 128795527 in words is "one hundred twenty-eight million, seven hundred ninety-five thousand, five hundred twenty-seven".