43042133 has 2 divisors, whose sum is σ = 43042134. Its totient is φ = 43042132.

The previous prime is 43042081. The next prime is 43042159. The reversal of 43042133 is 33124034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37920964 + 5121169 = 6158^2 + 2263^2 .

It is a cyclic number.

It is not a de Polignac number, because 43042133 - 2¹⁶ = 42976597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43042193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21521066 + 21521067.

It is an arithmetic number, because the mean of its divisors is an integer number (21521067).

Almost surely, 2^43042133 is an apocalyptic number.

It is an amenable number.

43042133 is a deficient number, since it is larger than the sum of its proper divisors (1).

43042133 is an equidigital number, since it uses as much as digits as its factorization.

43042133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 43042133 is about 6560.6503488602. The cubic root of 43042133 is about 350.4541940122.

Adding to 43042133 its reverse (33124034), we get a palindrome (76166167).

It can be divided in two parts, 430 and 42133, that multiplied together give a triangular number (18117190 = T₆₀₁₉).

The spelling of 43042133 in words is "forty-three million, forty-two thousand, one hundred thirty-three".