545314243 has 2 divisors, whose sum is σ = 545314244. Its totient is φ = 545314242.

The previous prime is 545314241. The next prime is 545314249. The reversal of 545314243 is 342413545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545314243 - 2¹ = 545314241 is a prime.

Together with 545314241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (545314241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272657121 + 272657122.

It is an arithmetic number, because the mean of its divisors is an integer number (272657122).

Almost surely, 2^545314243 is an apocalyptic number.

545314243 is a deficient number, since it is larger than the sum of its proper divisors (1).

545314243 is an equidigital number, since it uses as much as digits as its factorization.

545314243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 31.

The square root of 545314243 is about 23351.9644355673. The cubic root of 545314243 is about 816.9878797703.

Adding to 545314243 its reverse (342413545), we get a palindrome (887727788).

The spelling of 545314243 in words is "five hundred forty-five million, three hundred fourteen thousand, two hundred forty-three".