43136461 has 2 divisors, whose sum is σ = 43136462. Its totient is φ = 43136460.

The previous prime is 43136453. The next prime is 43136473. The reversal of 43136461 is 16463134.

43136461 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., 35402500 + 7733961 = 5950^2 + 2781^2 .

It is a cyclic number.

It is not a de Polignac number, because 43136461 - 2³ = 43136453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43136861) 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, 21568230 + 21568231.

It is an arithmetic number, because the mean of its divisors is an integer number (21568231).

Almost surely, 2^43136461 is an apocalyptic number.

It is an amenable number.

43136461 is a deficient number, since it is larger than the sum of its proper divisors (1).

43136461 is an equidigital number, since it uses as much as digits as its factorization.

43136461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 43136461 is about 6567.8353359383. The cubic root of 43136461 is about 350.7100171740.

Adding to 43136461 its reverse (16463134), we get a palindrome (59599595).

The spelling of 43136461 in words is "forty-three million, one hundred thirty-six thousand, four hundred sixty-one".