128065122 has 12 divisors (see below), whose sum is σ = 277474470. Its totient is φ = 42688368.

The previous prime is 128065121. The next prime is 128065159. The reversal of 128065122 is 221560821.

It is a happy number.

128065122 is a `hidden beast` number, since 1 + 2 + 8 + 0 + 651 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 95472441 + 32592681 = 9771^2 + 5709^2 .

It is not an unprimeable number, because it can be changed into a prime (128065121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3557347 + ... + 3557382.

Almost surely, 2^128065122 is an apocalyptic number.

128065122 is an abundant number, since it is smaller than the sum of its proper divisors (149409348).

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

128065122 is a wasteful number, since it uses less digits than its factorization.

128065122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7114737 (or 7114734 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 128065122 is about 11316.5861460071. The cubic root of 128065122 is about 504.0538727372.

The spelling of 128065122 in words is "one hundred twenty-eight million, sixty-five thousand, one hundred twenty-two".