128056 has 8 divisors (see below), whose sum is σ = 240120. Its totient is φ = 64024.

The previous prime is 128053. The next prime is 128099. The reversal of 128056 is 650821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7996 + ... + 8011.

It is an arithmetic number, because the mean of its divisors is an integer number (30015).

2¹²⁸⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

128056 is a deficient number, since it is larger than the sum of its proper divisors (112064).

128056 is a wasteful number, since it uses less digits than its factorization.

128056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16013 (or 16009 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 128056 is about 357.8491302211. The cubic root of 128056 is about 50.4041904637.

Adding to 128056 its reverse (650821), we get a palindrome (778877).

The spelling of 128056 in words is "one hundred twenty-eight thousand, fifty-six".