43042193 has 2 divisors, whose sum is σ = 43042194. Its totient is φ = 43042192.

The previous prime is 43042189. The next prime is 43042267. The reversal of 43042193 is 39124034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30283009 + 12759184 = 5503^2 + 3572^2 .

It is a cyclic number.

It is not a de Polignac number, because 43042193 - 2² = 43042189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (43042133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21521096 + 21521097.

It is an arithmetic number, because the mean of its divisors is an integer number (21521097).

Almost surely, 2^43042193 is an apocalyptic number.

It is an amenable number.

43042193 is a deficient number, since it is larger than the sum of its proper divisors (1).

43042193 is an equidigital number, since it uses as much as digits as its factorization.

43042193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 43042193 is about 6560.6549215760. The cubic root of 43042193 is about 350.4543568545.

The spelling of 43042193 in words is "forty-three million, forty-two thousand, one hundred ninety-three".