43520041 has 2 divisors, whose sum is σ = 43520042. Its totient is φ = 43520040.

The previous prime is 43519997. The next prime is 43520083. The reversal of 43520041 is 14002534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26677225 + 16842816 = 5165^2 + 4104^2 .

It is a cyclic number.

It is not a de Polignac number, because 43520041 - 2⁹ = 43519529 is a prime.

It is not a weakly prime, because it can be changed into another prime (43520341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21760020 + 21760021.

It is an arithmetic number, because the mean of its divisors is an integer number (21760021).

Almost surely, 2^43520041 is an apocalyptic number.

It is an amenable number.

43520041 is a deficient number, since it is larger than the sum of its proper divisors (1).

43520041 is an equidigital number, since it uses as much as digits as its factorization.

43520041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 43520041 is about 6596.9721084752. The cubic root of 43520041 is about 351.7464842322.

Adding to 43520041 its reverse (14002534), we get a palindrome (57522575).

The spelling of 43520041 in words is "forty-three million, five hundred twenty thousand, forty-one".