43301161 has 2 divisors, whose sum is σ = 43301162. Its totient is φ = 43301160.

The previous prime is 43301143. The next prime is 43301177. The reversal of 43301161 is 16110334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 4761 = 6580^2 + 69^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43301161 is a prime.

It is not a weakly prime, because it can be changed into another prime (43301101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21650580 + 21650581.

It is an arithmetic number, because the mean of its divisors is an integer number (21650581).

Almost surely, 2^43301161 is an apocalyptic number.

It is an amenable number.

43301161 is a deficient number, since it is larger than the sum of its proper divisors (1).

43301161 is an equidigital number, since it uses as much as digits as its factorization.

43301161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 43301161 is about 6580.3617681705. The cubic root of 43301161 is about 351.1558007803.

Adding to 43301161 its reverse (16110334), we get a palindrome (59411495).

It can be divided in two parts, 4 and 3301161, that added together give a triangular number (3301165 = T₂₅₆₉).

The spelling of 43301161 in words is "forty-three million, three hundred one thousand, one hundred sixty-one".