128748 has 12 divisors (see below), whose sum is σ = 300440. Its totient is φ = 42912.

The previous prime is 128747. The next prime is 128749. The reversal of 128748 is 847821.

It is an interprime number because it is at equal distance from previous prime (128747) and next prime (128749).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (128747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5353 + ... + 5376.

2¹²⁸⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

128748 is an abundant number, since it is smaller than the sum of its proper divisors (171692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128748 is a wasteful number, since it uses less digits than its factorization.

128748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10736 (or 10734 counting only the distinct ones).

The product of its digits is 3584, while the sum is 30.

The square root of 128748 is about 358.8147154173. The cubic root of 128748 is about 50.4948202379.

Adding to 128748 its sum of digits (30), we get a triangular number (128778 = T₅₀₇).

It can be divided in two parts, 1287 and 48, that multiplied together give a triangular number (61776 = T₃₅₁).

The spelling of 128748 in words is "one hundred twenty-eight thousand, seven hundred forty-eight".