43814161 has 2 divisors, whose sum is σ = 43814162. Its totient is φ = 43814160.

The previous prime is 43814159. The next prime is 43814189. The reversal of 43814161 is 16141834.

43814161 = 4680² + 4681².

It is an a-pointer prime, because the next prime (43814189) can be obtained adding 43814161 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21911761 + 21902400 = 4681^2 + 4680^2 .

It is a cyclic number.

It is not a de Polignac number, because 43814161 - 2¹ = 43814159 is a prime.

Together with 43814159, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (43814101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21907080 + 21907081.

It is an arithmetic number, because the mean of its divisors is an integer number (21907081).

Almost surely, 2^43814161 is an apocalyptic number.

43814161 is the 4681-st centered square number.

It is an amenable number.

43814161 is a deficient number, since it is larger than the sum of its proper divisors (1).

43814161 is an equidigital number, since it uses as much as digits as its factorization.

43814161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 43814161 is about 6619.2266164560. The cubic root of 43814161 is about 352.5371045562.

Adding to 43814161 its reverse (16141834), we get a palindrome (59955995).

The spelling of 43814161 in words is "forty-three million, eight hundred fourteen thousand, one hundred sixty-one".