128216795 has 8 divisors (see below), whose sum is σ = 175840224. Its totient is φ = 87920064.

The previous prime is 128216791. The next prime is 128216821. The reversal of 128216795 is 597612821.

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 128216795 - 2² = 128216791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128216791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831634 + ... + 1831703.

It is an arithmetic number, because the mean of its divisors is an integer number (21980028).

Almost surely, 2^128216795 is an apocalyptic number.

128216795 is a deficient number, since it is larger than the sum of its proper divisors (47623429).

128216795 is an equidigital number, since it uses as much as digits as its factorization.

128216795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663349.

The product of its digits is 60480, while the sum is 41.

The square root of 128216795 is about 11323.2855214377. The cubic root of 128216795 is about 504.2527850826.

The spelling of 128216795 in words is "one hundred twenty-eight million, two hundred sixteen thousand, seven hundred ninety-five".