545215613 has 2 divisors, whose sum is σ = 545215614. Its totient is φ = 545215612.

The previous prime is 545215607. The next prime is 545215669. The reversal of 545215613 is 316512545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390536644 + 154678969 = 19762^2 + 12437^2 .

It is a cyclic number.

It is not a de Polignac number, because 545215613 - 2⁴ = 545215597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545215613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545215673) 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, 272607806 + 272607807.

It is an arithmetic number, because the mean of its divisors is an integer number (272607807).

Almost surely, 2^545215613 is an apocalyptic number.

It is an amenable number.

545215613 is a deficient number, since it is larger than the sum of its proper divisors (1).

545215613 is an equidigital number, since it uses as much as digits as its factorization.

545215613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 32.

The square root of 545215613 is about 23349.8525263009. The cubic root of 545215613 is about 816.9386210941.

The spelling of 545215613 in words is "five hundred forty-five million, two hundred fifteen thousand, six hundred thirteen".