128012 has 6 divisors (see below), whose sum is σ = 224028. Its totient is φ = 64004.
The previous prime is 127997. The next prime is 128021. The reversal of 128012 is 210821.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15998 + ... + 16005.
It is an arithmetic number, because the mean of its divisors is an integer number (37338).
2128012 is an apocalyptic number.
It is an amenable number.
128012 is a deficient number, since it is larger than the sum of its proper divisors (96016).
128012 is a wasteful number, since it uses less digits than its factorization.
128012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32007 (or 32005 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 14.
The square root of 128012 is about 357.7876465168. The cubic root of 128012 is about 50.3984168479.
Adding to 128012 its reverse (210821), we get a palindrome (338833).
The spelling of 128012 in words is "one hundred twenty-eight thousand, twelve".
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