43461161 has 2 divisors, whose sum is σ = 43461162. Its totient is φ = 43461160.

The previous prime is 43461149. The next prime is 43461181. The reversal of 43461161 is 16116434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36675136 + 6786025 = 6056^2 + 2605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43461161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43461161.

It is not a weakly prime, because it can be changed into another prime (43461181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21730580 + 21730581.

It is an arithmetic number, because the mean of its divisors is an integer number (21730581).

Almost surely, 2^43461161 is an apocalyptic number.

It is an amenable number.

43461161 is a deficient number, since it is larger than the sum of its proper divisors (1).

43461161 is an equidigital number, since it uses as much as digits as its factorization.

43461161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 43461161 is about 6592.5079446293. The cubic root of 43461161 is about 351.5877820212.

Adding to 43461161 its reverse (16116434), we get a palindrome (59577595).

The spelling of 43461161 in words is "forty-three million, four hundred sixty-one thousand, one hundred sixty-one".