128006105 has 16 divisors (see below), whose sum is σ = 156686400. Its totient is φ = 100363200.

The previous prime is 128006093. The next prime is 128006111. The reversal of 128006105 is 501600821.

It is not a de Polignac number, because 128006105 - 2⁴ = 128006089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182255 + ... + 182955.

It is an arithmetic number, because the mean of its divisors is an integer number (9792900).

Almost surely, 2^128006105 is an apocalyptic number.

It is an amenable number.

128006105 is a deficient number, since it is larger than the sum of its proper divisors (28680295).

128006105 is an equidigital number, since it uses as much as digits as its factorization.

128006105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 128006105 is about 11313.9783011989. The cubic root of 128006105 is about 503.9764321410.

Adding to 128006105 its reverse (501600821), we get a palindrome (629606926).

The spelling of 128006105 in words is "one hundred twenty-eight million, six thousand, one hundred five".