43004040133 has 4 divisors (see below), whose sum is σ = 43015176288. Its totient is φ = 42992903980.

The previous prime is 43004040097. The next prime is 43004040139. The reversal of 43004040133 is 33104040034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43004040133 - 2²⁹ = 42467169221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43004040139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5562283 + ... + 5570008.

It is an arithmetic number, because the mean of its divisors is an integer number (10753794072).

Almost surely, 2^43004040133 is an apocalyptic number.

It is an amenable number.

43004040133 is a deficient number, since it is larger than the sum of its proper divisors (11136155).

43004040133 is a wasteful number, since it uses less digits than its factorization.

43004040133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11136154.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 43004040133 its reverse (33104040034), we get a palindrome (76108080167).

Subtracting from 43004040133 its reverse (33104040034), we obtain a palindrome (9900000099).

The spelling of 43004040133 in words is "forty-three billion, four million, forty thousand, one hundred thirty-three".