128020606 has 16 divisors (see below), whose sum is σ = 222243840. Its totient is φ = 54171000.

The previous prime is 128020603. The next prime is 128020637. The reversal of 128020606 is 606020821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128020603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56770 + ... + 58981.

It is an arithmetic number, because the mean of its divisors is an integer number (13890240).

Almost surely, 2^128020606 is an apocalyptic number.

128020606 is a deficient number, since it is larger than the sum of its proper divisors (94223234).

128020606 is a wasteful number, since it uses less digits than its factorization.

128020606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115839.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 128020606 is about 11314.6191274828. The cubic root of 128020606 is about 503.9954621872.

The spelling of 128020606 in words is "one hundred twenty-eight million, twenty thousand, six hundred six".