128587548 has 12 divisors (see below), whose sum is σ = 300037640. Its totient is φ = 42862512.

The previous prime is 128587531. The next prime is 128587561. The reversal of 128587548 is 845785821.

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

It is a junction number, because it is equal to n+sod(n) for n = 128587497 and 128587506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5357803 + ... + 5357826.

Almost surely, 2^128587548 is an apocalyptic number.

It is an amenable number.

128587548 is an abundant number, since it is smaller than the sum of its proper divisors (171450092).

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

128587548 is a wasteful number, since it uses less digits than its factorization.

128587548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10715636 (or 10715634 counting only the distinct ones).

The product of its digits is 716800, while the sum is 48.

The square root of 128587548 is about 11339.6449679873. The cubic root of 128587548 is about 504.7383515356.

The spelling of 128587548 in words is "one hundred twenty-eight million, five hundred eighty-seven thousand, five hundred forty-eight".