128515795 has 8 divisors (see below), whose sum is σ = 154432080. Its totient is φ = 102670560.

The previous prime is 128515769. The next prime is 128515799. The reversal of 128515795 is 597515821.

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

It is not a de Polignac number, because 128515795 - 2¹⁵ = 128483027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128515799) 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, 13696 + ... + 21085.

It is an arithmetic number, because the mean of its divisors is an integer number (19304010).

Almost surely, 2^128515795 is an apocalyptic number.

128515795 is a deficient number, since it is larger than the sum of its proper divisors (25916285).

128515795 is an equidigital number, since it uses as much as digits as its factorization.

128515795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35525.

The product of its digits is 126000, while the sum is 43.

The square root of 128515795 is about 11336.4807149309. The cubic root of 128515795 is about 504.6444512320.

The spelling of 128515795 in words is "one hundred twenty-eight million, five hundred fifteen thousand, seven hundred ninety-five".