43161401 has 2 divisors, whose sum is σ = 43161402. Its totient is φ = 43161400.

The previous prime is 43161383. The next prime is 43161431. The reversal of 43161401 is 10416134.

43161401 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., 21631801 + 21529600 = 4651^2 + 4640^2 .

It is a cyclic number.

It is not a de Polignac number, because 43161401 - 2⁶ = 43161337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43161431) 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, 21580700 + 21580701.

It is an arithmetic number, because the mean of its divisors is an integer number (21580701).

Almost surely, 2^43161401 is an apocalyptic number.

It is an amenable number.

43161401 is a deficient number, since it is larger than the sum of its proper divisors (1).

43161401 is an equidigital number, since it uses as much as digits as its factorization.

43161401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 43161401 is about 6569.7337084542. The cubic root of 43161401 is about 350.7775935930. Note that the first 3 decimals are identical.

Adding to 43161401 its reverse (10416134), we get a palindrome (53577535).

The spelling of 43161401 in words is "forty-three million, one hundred sixty-one thousand, four hundred one".