43570061 has 2 divisors, whose sum is σ = 43570062. Its totient is φ = 43570060.

The previous prime is 43570019. The next prime is 43570069. The reversal of 43570061 is 16007534.

43570061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24157225 + 19412836 = 4915^2 + 4406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43570061 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43570061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43570069) 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, 21785030 + 21785031.

It is an arithmetic number, because the mean of its divisors is an integer number (21785031).

Almost surely, 2^43570061 is an apocalyptic number.

It is an amenable number.

43570061 is a deficient number, since it is larger than the sum of its proper divisors (1).

43570061 is an equidigital number, since it uses as much as digits as its factorization.

43570061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 43570061 is about 6600.7621529639. The cubic root of 43570061 is about 351.8811932254.

Adding to 43570061 its reverse (16007534), we get a palindrome (59577595).

The spelling of 43570061 in words is "forty-three million, five hundred seventy thousand, sixty-one".