43611361 has 2 divisors, whose sum is σ = 43611362. Its totient is φ = 43611360.

The previous prime is 43611353. The next prime is 43611371. The reversal of 43611361 is 16311634.

It is a happy number.

43611361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37638225 + 5973136 = 6135^2 + 2444^2 .

It is a cyclic number.

It is not a de Polignac number, because 43611361 - 2³ = 43611353 is a prime.

It is not a weakly prime, because it can be changed into another prime (43611311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21805680 + 21805681.

It is an arithmetic number, because the mean of its divisors is an integer number (21805681).

Almost surely, 2^43611361 is an apocalyptic number.

It is an amenable number.

43611361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43611361 is an equidigital number, since it uses as much as digits as its factorization.

43611361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 43611361 is about 6603.8898385724. The cubic root of 43611361 is about 351.9923406779.

Adding to 43611361 its reverse (16311634), we get a palindrome (59922995).

The spelling of 43611361 in words is "forty-three million, six hundred eleven thousand, three hundred sixty-one".