128235064 has 16 divisors (see below), whose sum is σ = 240855120. Its totient is φ = 64007040.

The previous prime is 128235031. The next prime is 128235101. The reversal of 128235064 is 460532821.

It is a congruent number.

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, 8772 + ... + 18259.

It is an arithmetic number, because the mean of its divisors is an integer number (15053445).

Almost surely, 2^128235064 is an apocalyptic number.

It is an amenable number.

128235064 is a deficient number, since it is larger than the sum of its proper divisors (112620056).

128235064 is a wasteful number, since it uses less digits than its factorization.

128235064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27630 (or 27626 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 128235064 is about 11324.0921931959. The cubic root of 128235064 is about 504.2767334705.

Adding to 128235064 its reverse (460532821), we get a palindrome (588767885).

The spelling of 128235064 in words is "one hundred twenty-eight million, two hundred thirty-five thousand, sixty-four".