128416233 has 16 divisors (see below), whose sum is σ = 191837376. Its totient is φ = 75723840.

The previous prime is 128416219. The next prime is 128416237. The reversal of 128416233 is 332614821.

It is not a de Polignac number, because 128416233 - 2⁵ = 128416201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128416233.

It is not an unprimeable number, because it can be changed into a prime (128416237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51366 + ... + 53807.

It is an arithmetic number, because the mean of its divisors is an integer number (11989836).

Almost surely, 2^128416233 is an apocalyptic number.

It is an amenable number.

128416233 is a deficient number, since it is larger than the sum of its proper divisors (63421143).

128416233 is a wasteful number, since it uses less digits than its factorization.

128416233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105224.

The product of its digits is 6912, while the sum is 30.

The square root of 128416233 is about 11332.0886424348. The cubic root of 128416233 is about 504.5141004813.

The spelling of 128416233 in words is "one hundred twenty-eight million, four hundred sixteen thousand, two hundred thirty-three".