128795525 has 24 divisors (see below), whose sum is σ = 168069600. Its totient is φ = 97764800.

The previous prime is 128795521. The next prime is 128795531. The reversal of 128795525 is 525597821.

It is not a de Polignac number, because 128795525 - 2² = 128795521 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 41270 + ... + 44280.

It is an arithmetic number, because the mean of its divisors is an integer number (7002900).

Almost surely, 2^128795525 is an apocalyptic number.

It is an amenable number.

128795525 is a deficient number, since it is larger than the sum of its proper divisors (39274075).

128795525 is a wasteful number, since it uses less digits than its factorization.

128795525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109 (or 3104 counting only the distinct ones).

The product of its digits is 252000, while the sum is 44.

The square root of 128795525 is about 11348.8116117944. The cubic root of 128795525 is about 505.0103255739.

The spelling of 128795525 in words is "one hundred twenty-eight million, seven hundred ninety-five thousand, five hundred twenty-five".