43540363 has 2 divisors, whose sum is σ = 43540364. Its totient is φ = 43540362.

The previous prime is 43540351. The next prime is 43540391. The reversal of 43540363 is 36304534.

It is an a-pointer prime, because the next prime (43540391) can be obtained adding 43540363 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43540363 - 2⁵ = 43540331 is a prime.

It is not a weakly prime, because it can be changed into another prime (43540163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21770181 + 21770182.

It is an arithmetic number, because the mean of its divisors is an integer number (21770182).

Almost surely, 2^43540363 is an apocalyptic number.

43540363 is a deficient number, since it is larger than the sum of its proper divisors (1).

43540363 is an equidigital number, since it uses as much as digits as its factorization.

43540363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 43540363 is about 6598.5121807874. The cubic root of 43540363 is about 351.8012259063.

Adding to 43540363 its reverse (36304534), we get a palindrome (79844897).

The spelling of 43540363 in words is "forty-three million, five hundred forty thousand, three hundred sixty-three".