43043171 has 2 divisors, whose sum is σ = 43043172. Its totient is φ = 43043170.

The previous prime is 43043149. The next prime is 43043177. The reversal of 43043171 is 17134034.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43043171 - 2²² = 38848867 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43043177) 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, 21521585 + 21521586.

It is an arithmetic number, because the mean of its divisors is an integer number (21521586).

Almost surely, 2^43043171 is an apocalyptic number.

43043171 is a deficient number, since it is larger than the sum of its proper divisors (1).

43043171 is an equidigital number, since it uses as much as digits as its factorization.

43043171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 43043171 is about 6560.7294563943. The cubic root of 43043171 is about 350.4570111630.

The spelling of 43043171 in words is "forty-three million, forty-three thousand, one hundred seventy-one".