43243163 has 2 divisors, whose sum is σ = 43243164. Its totient is φ = 43243162.

The previous prime is 43243157. The next prime is 43243181. The reversal of 43243163 is 36134234.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43243163 - 2¹² = 43239067 is a prime.

It is a super-2 number, since 2×43243163² = 3739942292489138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43243133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621581 + 21621582.

It is an arithmetic number, because the mean of its divisors is an integer number (21621582).

Almost surely, 2^43243163 is an apocalyptic number.

43243163 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243163 is an equidigital number, since it uses as much as digits as its factorization.

43243163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 26.

The square root of 43243163 is about 6575.9533909540. The cubic root of 43243163 is about 350.9989502218.

Adding to 43243163 its reverse (36134234), we get a palindrome (79377397).

The spelling of 43243163 in words is "forty-three million, two hundred forty-three thousand, one hundred sixty-three".