128133043 has 4 divisors (see below), whose sum is σ = 128156400. Its totient is φ = 128109688.

The previous prime is 128132987. The next prime is 128133059. The reversal of 128133043 is 340331821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340331821 = 389 ⋅874889.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128133043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128132999 and 128133017.

It is not an unprimeable number, because it can be changed into a prime (128131043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533 + ... + 16081.

It is an arithmetic number, because the mean of its divisors is an integer number (32039100).

Almost surely, 2^128133043 is an apocalyptic number.

128133043 is a deficient number, since it is larger than the sum of its proper divisors (23357).

128133043 is an equidigital number, since it uses as much as digits as its factorization.

128133043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23356.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 128133043 is about 11319.5866974020. The cubic root of 128133043 is about 504.1429674932.

Adding to 128133043 its reverse (340331821), we get a palindrome (468464864).

The spelling of 128133043 in words is "one hundred twenty-eight million, one hundred thirty-three thousand, forty-three".