5128 has 8 divisors (see below), whose sum is σ = 9630. Its totient is φ = 2560.

The previous prime is 5119. The next prime is 5147. The reversal of 5128 is 8215.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3364 + 1764 = 58^2 + 42^2 .

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

It is a plaindrome in base 13 and base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313 + ... + 328.

2⁵¹²⁸ is an apocalyptic number.

It is an amenable number.

5128 is a deficient number, since it is larger than the sum of its proper divisors (4502).

5128 is a wasteful number, since it uses less digits than its factorization.

5128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 643 counting only the distinct ones).

The product of its digits is 80, while the sum is 16.

The square root of 5128 is about 71.6100551599. The cubic root of 5128 is about 17.2444496601.

It can be divided in two parts, 512 and 8, that multiplied together give a 12-th power (4096 = 2¹²).

The spelling of 5128 in words is "five thousand, one hundred twenty-eight".