128029833 has 24 divisors (see below), whose sum is σ = 189666048. Its totient is φ = 83184192.

The previous prime is 128029813. The next prime is 128029841. The reversal of 128029833 is 338920821.

It is a happy number.

It is not a de Polignac number, because 128029833 - 2¹⁴ = 128013449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128029813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131916 + ... + 132882.

It is an arithmetic number, because the mean of its divisors is an integer number (7902752).

Almost surely, 2^128029833 is an apocalyptic number.

It is an amenable number.

128029833 is a deficient number, since it is larger than the sum of its proper divisors (61636215).

128029833 is a wasteful number, since it uses less digits than its factorization.

128029833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 128029833 is about 11315.0268669588. The cubic root of 128029833 is about 504.0075702756.

It can be divided in two parts, 1280 and 29833, that added together give a palindrome (31113).

The spelling of 128029833 in words is "one hundred twenty-eight million, twenty-nine thousand, eight hundred thirty-three".