543314561 has 4 divisors (see below), whose sum is σ = 543422724. Its totient is φ = 543206400.

The previous prime is 543314491. The next prime is 543314573. The reversal of 543314561 is 165413345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 165413345 = 5 ⋅33082669.

It can be written as a sum of positive squares in 2 ways, for example, as 279057025 + 264257536 = 16705^2 + 16256^2 .

It is a cyclic number.

It is not a de Polignac number, because 543314561 - 2¹⁸ = 543052417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (543314581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46160 + ... + 56721.

It is an arithmetic number, because the mean of its divisors is an integer number (135855681).

Almost surely, 2^543314561 is an apocalyptic number.

It is an amenable number.

543314561 is a deficient number, since it is larger than the sum of its proper divisors (108163).

543314561 is a wasteful number, since it uses less digits than its factorization.

543314561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108162.

The product of its digits is 21600, while the sum is 32.

The square root of 543314561 is about 23309.1089705291. The cubic root of 543314561 is about 815.9880177539.

The spelling of 543314561 in words is "five hundred forty-three million, three hundred fourteen thousand, five hundred sixty-one".