43158041 has 2 divisors, whose sum is σ = 43158042. Its totient is φ = 43158040.

The previous prime is 43158023. The next prime is 43158043. The reversal of 43158041 is 14085134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40896025 + 2262016 = 6395^2 + 1504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43158041 is a prime.

Together with 43158043, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43158041.

It is not a weakly prime, because it can be changed into another prime (43158043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21579020 + 21579021.

It is an arithmetic number, because the mean of its divisors is an integer number (21579021).

Almost surely, 2^43158041 is an apocalyptic number.

It is an amenable number.

43158041 is a deficient number, since it is larger than the sum of its proper divisors (1).

43158041 is an equidigital number, since it uses as much as digits as its factorization.

43158041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 43158041 is about 6569.4779853501. The cubic root of 43158041 is about 350.7684909900.

The spelling of 43158041 in words is "forty-three million, one hundred fifty-eight thousand, forty-one".