128112806 has 16 divisors (see below), whose sum is σ = 201657600. Its totient is φ = 60925128.

The previous prime is 128112793. The next prime is 128112841. The reversal of 128112806 is 608211821.

It is a super-2 number, since 2×128112806² = 32825782122387272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455 + ... + 16013.

It is an arithmetic number, because the mean of its divisors is an integer number (12603600).

Almost surely, 2^128112806 is an apocalyptic number.

128112806 is a deficient number, since it is larger than the sum of its proper divisors (73544794).

128112806 is a wasteful number, since it uses less digits than its factorization.

128112806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15763.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 128112806 is about 11318.6927690436. The cubic root of 128112806 is about 504.1164250855.

The spelling of 128112806 in words is "one hundred twenty-eight million, one hundred twelve thousand, eight hundred six".