128548236 has 12 divisors (see below), whose sum is σ = 299945912. Its totient is φ = 42849408.

The previous prime is 128548201. The next prime is 128548241. The reversal of 128548236 is 632845821.

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 = 128548194 and 128548203.

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, 5356165 + ... + 5356188.

Almost surely, 2^128548236 is an apocalyptic number.

It is an amenable number.

128548236 is an abundant number, since it is smaller than the sum of its proper divisors (171397676).

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

128548236 is a wasteful number, since it uses less digits than its factorization.

128548236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10712360 (or 10712358 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 128548236 is about 11337.9114478814. The cubic root of 128548236 is about 504.6869098090.

The spelling of 128548236 in words is "one hundred twenty-eight million, five hundred forty-eight thousand, two hundred thirty-six".