128275016 has 16 divisors (see below), whose sum is σ = 243811500. Its totient is φ = 63258624.

The previous prime is 128274973. The next prime is 128275039. The reversal of 128275016 is 610572821.

It can be written as a sum of positive squares in 2 ways, for example, as 111218116 + 17056900 = 10546^2 + 4130^2 .

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, 109241 + ... + 110408.

Almost surely, 2^128275016 is an apocalyptic number.

It is an amenable number.

128275016 is a deficient number, since it is larger than the sum of its proper divisors (115536484).

128275016 is a wasteful number, since it uses less digits than its factorization.

128275016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219728 (or 219724 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 128275016 is about 11325.8560824337. The cubic root of 128275016 is about 504.3290976511.

The spelling of 128275016 in words is "one hundred twenty-eight million, two hundred seventy-five thousand, sixteen".