545105219 has 2 divisors, whose sum is σ = 545105220. Its totient is φ = 545105218.

The previous prime is 545105191. The next prime is 545105227. The reversal of 545105219 is 912501545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545105219 is a prime.

It is a super-2 number, since 2×545105219² = 594279399562075922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545105419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272552609 + 272552610.

It is an arithmetic number, because the mean of its divisors is an integer number (272552610).

Almost surely, 2^545105219 is an apocalyptic number.

545105219 is a deficient number, since it is larger than the sum of its proper divisors (1).

545105219 is an equidigital number, since it uses as much as digits as its factorization.

545105219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 545105219 is about 23347.4884944827. The cubic root of 545105219 is about 816.8834800896.

The spelling of 545105219 in words is "five hundred forty-five million, one hundred five thousand, two hundred nineteen".