545043133 has 2 divisors, whose sum is σ = 545043134. Its totient is φ = 545043132.

The previous prime is 545043131. The next prime is 545043193. The reversal of 545043133 is 331340545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308283364 + 236759769 = 17558^2 + 15387^2 .

It is a cyclic number.

It is not a de Polignac number, because 545043133 - 2¹ = 545043131 is a prime.

Together with 545043131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545043131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272521566 + 272521567.

It is an arithmetic number, because the mean of its divisors is an integer number (272521567).

Almost surely, 2^545043133 is an apocalyptic number.

It is an amenable number.

545043133 is a deficient number, since it is larger than the sum of its proper divisors (1).

545043133 is an equidigital number, since it uses as much as digits as its factorization.

545043133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 545043133 is about 23346.1588489413. The cubic root of 545043133 is about 816.8524653108.

Adding to 545043133 its reverse (331340545), we get a palindrome (876383678).

The spelling of 545043133 in words is "five hundred forty-five million, forty-three thousand, one hundred thirty-three".