43161449 has 2 divisors, whose sum is σ = 43161450. Its totient is φ = 43161448.

The previous prime is 43161431. The next prime is 43161457. The reversal of 43161449 is 94416134.

It is a happy number.

43161449 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., 22848400 + 20313049 = 4780^2 + 4507^2 .

It is a cyclic number.

It is not a de Polignac number, because 43161449 - 2²⁴ = 26384233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43161049) 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, 21580724 + 21580725.

It is an arithmetic number, because the mean of its divisors is an integer number (21580725).

Almost surely, 2^43161449 is an apocalyptic number.

It is an amenable number.

43161449 is a deficient number, since it is larger than the sum of its proper divisors (1).

43161449 is an equidigital number, since it uses as much as digits as its factorization.

43161449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 43161449 is about 6569.7373615693. The cubic root of 43161449 is about 350.7777236268. Note that the first 4 decimals are identical.

The spelling of 43161449 in words is "forty-three million, one hundred sixty-one thousand, four hundred forty-nine".