43122133 has 4 divisors (see below), whose sum is σ = 43240000. Its totient is φ = 43004268.

The previous prime is 43122113. The next prime is 43122137. The reversal of 43122133 is 33122134.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33122134 = 2 ⋅16561067.

It is a cyclic number.

It is not a de Polignac number, because 43122133 - 2¹⁷ = 42991061 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 43122133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43122137) 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, 58383 + ... + 59116.

It is an arithmetic number, because the mean of its divisors is an integer number (10810000).

Almost surely, 2^43122133 is an apocalyptic number.

It is an amenable number.

43122133 is a deficient number, since it is larger than the sum of its proper divisors (117867).

43122133 is a wasteful number, since it uses less digits than its factorization.

43122133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117866.

The product of its digits is 432, while the sum is 19.

The square root of 43122133 is about 6566.7444750043. The cubic root of 43122133 is about 350.6711828216.

Adding to 43122133 its reverse (33122134), we get a palindrome (76244267).

Subtracting from 43122133 its reverse (33122134), we obtain a palindrome (9999999).

The spelling of 43122133 in words is "forty-three million, one hundred twenty-two thousand, one hundred thirty-three".