128127159 has 24 divisors (see below), whose sum is σ = 189090720. Its totient is φ = 83584512.

The previous prime is 128127157. The next prime is 128127163. The reversal of 128127159 is 951721821.

It is a happy number.

It is not a de Polignac number, because 128127159 - 2¹ = 128127157 is a prime.

It is a super-2 number, since 2×128127159² = 32833137746822562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128127151) 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, 81727 + ... + 83279.

It is an arithmetic number, because the mean of its divisors is an integer number (7878780).

Almost surely, 2^128127159 is an apocalyptic number.

128127159 is a deficient number, since it is larger than the sum of its proper divisors (60963561).

128127159 is a wasteful number, since it uses less digits than its factorization.

128127159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751 (or 1748 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 128127159 is about 11319.3267909359. The cubic root of 128127159 is about 504.1352504553.

The spelling of 128127159 in words is "one hundred twenty-eight million, one hundred twenty-seven thousand, one hundred fifty-nine".