43535161 has 2 divisors, whose sum is σ = 43535162. Its totient is φ = 43535160.

The previous prime is 43535143. The next prime is 43535201. The reversal of 43535161 is 16153534.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42445225 + 1089936 = 6515^2 + 1044^2 .

It is a cyclic number.

It is not a de Polignac number, because 43535161 - 2²¹ = 41438009 is a prime.

It is not a weakly prime, because it can be changed into another prime (43535111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21767580 + 21767581.

It is an arithmetic number, because the mean of its divisors is an integer number (21767581).

Almost surely, 2^43535161 is an apocalyptic number.

It is an amenable number.

43535161 is a deficient number, since it is larger than the sum of its proper divisors (1).

43535161 is an equidigital number, since it uses as much as digits as its factorization.

43535161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

The square root of 43535161 is about 6598.1179892451. The cubic root of 43535161 is about 351.7872148237.

Adding to 43535161 its reverse (16153534), we get a palindrome (59688695).

The spelling of 43535161 in words is "forty-three million, five hundred thirty-five thousand, one hundred sixty-one".