543161 has 2 divisors, whose sum is σ = 543162. Its totient is φ = 543160.

The previous prime is 543157. The next prime is 543163. The reversal of 543161 is 161345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383161 + 160000 = 619^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 543161 - 2² = 543157 is a prime.

Together with 543163, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 543161.

It is not a weakly prime, because it can be changed into another prime (543163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271580 + 271581.

It is an arithmetic number, because the mean of its divisors is an integer number (271581).

2⁵⁴³¹⁶¹ is an apocalyptic number.

It is an amenable number.

543161 is a deficient number, since it is larger than the sum of its proper divisors (1).

543161 is an equidigital number, since it uses as much as digits as its factorization.

543161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 20.

The square root of 543161 is about 736.9945725716. The cubic root of 543161 is about 81.5911134274.

The spelling of 543161 in words is "five hundred forty-three thousand, one hundred sixty-one".