43257041 has 2 divisors, whose sum is σ = 43257042. Its totient is φ = 43257040.

The previous prime is 43257037. The next prime is 43257047. The reversal of 43257041 is 14075234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34281025 + 8976016 = 5855^2 + 2996^2 .

It is a cyclic number.

It is not a de Polignac number, because 43257041 - 2² = 43257037 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43257041.

It is not a weakly prime, because it can be changed into another prime (43257047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21628520 + 21628521.

It is an arithmetic number, because the mean of its divisors is an integer number (21628521).

Almost surely, 2^43257041 is an apocalyptic number.

It is an amenable number.

43257041 is a deficient number, since it is larger than the sum of its proper divisors (1).

43257041 is an equidigital number, since it uses as much as digits as its factorization.

43257041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 43257041 is about 6577.0085145148. The cubic root of 43257041 is about 351.0364948269.

The spelling of 43257041 in words is "forty-three million, two hundred fifty-seven thousand, forty-one".