128013226 has 16 divisors (see below), whose sum is σ = 209816928. Its totient is φ = 58093200.

The previous prime is 128013217. The next prime is 128013271. The reversal of 128013226 is 622310821.

It is a self number, because there is not a number n which added to its sum of digits gives 128013226.

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, 10141 + ... + 18943.

It is an arithmetic number, because the mean of its divisors is an integer number (13113558).

Almost surely, 2^128013226 is an apocalyptic number.

128013226 is a deficient number, since it is larger than the sum of its proper divisors (81803702).

128013226 is a wasteful number, since it uses less digits than its factorization.

128013226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9477.

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

The square root of 128013226 is about 11314.2929960294. The cubic root of 128013226 is about 503.9857773974.

The spelling of 128013226 in words is "one hundred twenty-eight million, thirteen thousand, two hundred twenty-six".