128135795 has 8 divisors (see below), whose sum is σ = 153847296. Its totient is φ = 102452416.

The previous prime is 128135663. The next prime is 128135797. The reversal of 128135795 is 597531821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128135795 - 2¹² = 128131699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128135797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4814 + ... + 16716.

It is an arithmetic number, because the mean of its divisors is an integer number (19230912).

Almost surely, 2^128135795 is an apocalyptic number.

128135795 is a deficient number, since it is larger than the sum of its proper divisors (25711501).

128135795 is a wasteful number, since it uses less digits than its factorization.

128135795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14061.

The product of its digits is 75600, while the sum is 41.

The square root of 128135795 is about 11319.7082559578. The cubic root of 128135795 is about 504.1465767405.

The spelling of 128135795 in words is "one hundred twenty-eight million, one hundred thirty-five thousand, seven hundred ninety-five".