128065061 has 8 divisors (see below), whose sum is σ = 132332544. Its totient is φ = 123806160.

The previous prime is 128065033. The next prime is 128065121. The reversal of 128065061 is 160560821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128065061 - 2¹⁰ = 128064037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128065261) 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 7 ways as a sum of consecutive naturals, for example, 44900 + ... + 47666.

It is an arithmetic number, because the mean of its divisors is an integer number (16541568).

Almost surely, 2^128065061 is an apocalyptic number.

It is an amenable number.

128065061 is a deficient number, since it is larger than the sum of its proper divisors (4267483).

128065061 is a wasteful number, since it uses less digits than its factorization.

128065061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4291.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 128065061 is about 11316.5834508477. The cubic root of 128065061 is about 504.0537927068.

The spelling of 128065061 in words is "one hundred twenty-eight million, sixty-five thousand, sixty-one".