545243263 has 2 divisors, whose sum is σ = 545243264. Its totient is φ = 545243262.

The previous prime is 545243219. The next prime is 545243269. The reversal of 545243263 is 362342545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545243263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545243269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272621631 + 272621632.

It is an arithmetic number, because the mean of its divisors is an integer number (272621632).

Almost surely, 2^545243263 is an apocalyptic number.

545243263 is a deficient number, since it is larger than the sum of its proper divisors (1).

545243263 is an equidigital number, since it uses as much as digits as its factorization.

545243263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 34.

The square root of 545243263 is about 23350.4445996217. Note that the first 3 decimals coincide. The cubic root of 545243263 is about 816.9524309034.

The spelling of 545243263 in words is "five hundred forty-five million, two hundred forty-three thousand, two hundred sixty-three".