545240539 has 2 divisors, whose sum is σ = 545240540. Its totient is φ = 545240538.

The previous prime is 545240503. The next prime is 545240543. The reversal of 545240539 is 935042545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545240539 - 2¹⁵ = 545207771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545240498 and 545240507.

It is not a weakly prime, because it can be changed into another prime (545240039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272620269 + 272620270.

It is an arithmetic number, because the mean of its divisors is an integer number (272620270).

Almost surely, 2^545240539 is an apocalyptic number.

545240539 is a deficient number, since it is larger than the sum of its proper divisors (1).

545240539 is an equidigital number, since it uses as much as digits as its factorization.

545240539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 545240539 is about 23350.3862708950. The cubic root of 545240539 is about 816.9510704207.

The spelling of 545240539 in words is "five hundred forty-five million, two hundred forty thousand, five hundred thirty-nine".