43530345541 has 2 divisors, whose sum is σ = 43530345542. Its totient is φ = 43530345540.

The previous prime is 43530345527. The next prime is 43530345557. The reversal of 43530345541 is 14554303534.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29053202500 + 14477143041 = 170450^2 + 120321^2 .

It is a cyclic number.

It is not a de Polignac number, because 43530345541 - 2⁷ = 43530345413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43530345541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43530345041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21765172770 + 21765172771.

It is an arithmetic number, because the mean of its divisors is an integer number (21765172771).

Almost surely, 2^43530345541 is an apocalyptic number.

It is an amenable number.

43530345541 is a deficient number, since it is larger than the sum of its proper divisors (1).

43530345541 is an equidigital number, since it uses as much as digits as its factorization.

43530345541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 43530345541 in words is "forty-three billion, five hundred thirty million, three hundred forty-five thousand, five hundred forty-one".