128485012 has 6 divisors (see below), whose sum is σ = 224848778. Its totient is φ = 64242504.

The previous prime is 128485003. The next prime is 128485033. The reversal of 128485012 is 210584821.

It can be written as a sum of positive squares in only one way, i.e., 118461456 + 10023556 = 10884^2 + 3166^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060623 + ... + 16060630.

Almost surely, 2^128485012 is an apocalyptic number.

It is an amenable number.

128485012 is a deficient number, since it is larger than the sum of its proper divisors (96363766).

128485012 is a wasteful number, since it uses less digits than its factorization.

128485012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32121257 (or 32121255 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 128485012 is about 11335.1229371366. The cubic root of 128485012 is about 504.6041560278.

The spelling of 128485012 in words is "one hundred twenty-eight million, four hundred eighty-five thousand, twelve".