545200111 has 2 divisors, whose sum is σ = 545200112. Its totient is φ = 545200110.

The previous prime is 545200099. The next prime is 545200129. The reversal of 545200111 is 111002545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545200111 - 2¹⁷ = 545069039 is a prime.

It is a super-2 number, since 2×545200111² = 594486322068824642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545200151) 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, 272600055 + 272600056.

It is an arithmetic number, because the mean of its divisors is an integer number (272600056).

Almost surely, 2^545200111 is an apocalyptic number.

545200111 is a deficient number, since it is larger than the sum of its proper divisors (1).

545200111 is an equidigital number, since it uses as much as digits as its factorization.

545200111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 545200111 is about 23349.5205732366. The cubic root of 545200111 is about 816.9308784065.

Adding to 545200111 its reverse (111002545), we get a palindrome (656202656).

The spelling of 545200111 in words is "five hundred forty-five million, two hundred thousand, one hundred eleven".