128116 has 6 divisors (see below), whose sum is σ = 224210. Its totient is φ = 64056.

The previous prime is 128113. The next prime is 128119. The reversal of 128116 is 611821.

It is an interprime number because it is at equal distance from previous prime (128113) and next prime (128119).

It can be written as a sum of positive squares in only one way, i.e., 67600 + 60516 = 260^2 + 246^2 .

It is a junction number, because it is equal to n+sod(n) for n = 128093 and 128102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16011 + ... + 16018.

2¹²⁸¹¹⁶ is an apocalyptic number.

It is an amenable number.

128116 is a deficient number, since it is larger than the sum of its proper divisors (96094).

128116 is a wasteful number, since it uses less digits than its factorization.

128116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32033 (or 32031 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The square root of 128116 is about 357.9329546158. The cubic root of 128116 is about 50.4120614452.

Adding to 128116 its reverse (611821), we get a palindrome (739937).

It can be divided in two parts, 12 and 8116, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 128116 in words is "one hundred twenty-eight thousand, one hundred sixteen".