128883181 has 12 divisors (see below), whose sum is σ = 150926880. Its totient is φ = 109733400.

The previous prime is 128883149. The next prime is 128883193. The reversal of 128883181 is 181388821.

It is not a de Polignac number, because 128883181 - 2⁵ = 128883149 is a prime.

It is a super-2 number, since 2×128883181² = 33221748689357522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128883101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1311 + ... + 16108.

It is an arithmetic number, because the mean of its divisors is an integer number (12577240).

Almost surely, 2^128883181 is an apocalyptic number.

It is an amenable number.

128883181 is a deficient number, since it is larger than the sum of its proper divisors (22043699).

128883181 is a wasteful number, since it uses less digits than its factorization.

128883181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17584 (or 17577 counting only the distinct ones).

The product of its digits is 24576, while the sum is 40.

The square root of 128883181 is about 11352.6728570852. The cubic root of 128883181 is about 505.1248666819.

The spelling of 128883181 in words is "one hundred twenty-eight million, eight hundred eighty-three thousand, one hundred eighty-one".