545085643 has 2 divisors, whose sum is σ = 545085644. Its totient is φ = 545085642.

The previous prime is 545085641. The next prime is 545085659. The reversal of 545085643 is 346580545.

545085643 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 is a cyclic number.

It is not a de Polignac number, because 545085643 - 2¹ = 545085641 is a prime.

Together with 545085641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 545085596 and 545085605.

It is not a weakly prime, because it can be changed into another prime (545085641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272542821 + 272542822.

It is an arithmetic number, because the mean of its divisors is an integer number (272542822).

Almost surely, 2^545085643 is an apocalyptic number.

545085643 is a deficient number, since it is larger than the sum of its proper divisors (1).

545085643 is an equidigital number, since it uses as much as digits as its factorization.

545085643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 40.

The square root of 545085643 is about 23347.0692593310. The cubic root of 545085643 is about 816.8737012421.

The spelling of 545085643 in words is "five hundred forty-five million, eighty-five thousand, six hundred forty-three".