43057361 has 2 divisors, whose sum is σ = 43057362. Its totient is φ = 43057360.

The previous prime is 43057327. The next prime is 43057369. The reversal of 43057361 is 16375034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24403600 + 18653761 = 4940^2 + 4319^2 .

It is a cyclic number.

It is not a de Polignac number, because 43057361 - 2⁶ = 43057297 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (43057369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21528680 + 21528681.

It is an arithmetic number, because the mean of its divisors is an integer number (21528681).

Almost surely, 2^43057361 is an apocalyptic number.

It is an amenable number.

43057361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43057361 is an equidigital number, since it uses as much as digits as its factorization.

43057361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 43057361 is about 6561.8108019052. The cubic root of 43057361 is about 350.4955185382.

The spelling of 43057361 in words is "forty-three million, fifty-seven thousand, three hundred sixty-one".