543345461 has 2 divisors, whose sum is σ = 543345462. Its totient is φ = 543345460.

The previous prime is 543345433. The next prime is 543345487. The reversal of 543345461 is 164543345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408646225 + 134699236 = 20215^2 + 11606^2 .

It is a cyclic number.

It is not a de Polignac number, because 543345461 - 2¹⁰ = 543344437 is a prime.

It is a super-3 number, since 3×543345461³ (a number of 27 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543345431) 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, 271672730 + 271672731.

It is an arithmetic number, because the mean of its divisors is an integer number (271672731).

Almost surely, 2^543345461 is an apocalyptic number.

It is an amenable number.

543345461 is a deficient number, since it is larger than the sum of its proper divisors (1).

543345461 is an equidigital number, since it uses as much as digits as its factorization.

543345461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 35.

The square root of 543345461 is about 23309.7717921047. The cubic root of 543345461 is about 816.0034867250.

It can be divided in two parts, 54334 and 5461, that added together give a palindrome (59795).

The spelling of 543345461 in words is "five hundred forty-three million, three hundred forty-five thousand, four hundred sixty-one".