545245171 has 2 divisors, whose sum is σ = 545245172. Its totient is φ = 545245170.

The previous prime is 545245159. The next prime is 545245193. The reversal of 545245171 is 171542545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545245171 - 2¹⁵ = 545212403 is a prime.

It is not a weakly prime, because it can be changed into another prime (545242171) 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, 272622585 + 272622586.

It is an arithmetic number, because the mean of its divisors is an integer number (272622586).

Almost surely, 2^545245171 is an apocalyptic number.

545245171 is a deficient number, since it is larger than the sum of its proper divisors (1).

545245171 is an equidigital number, since it uses as much as digits as its factorization.

545245171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 34.

The square root of 545245171 is about 23350.4854553390. The cubic root of 545245171 is about 816.9533838380.

It can be divided in two parts, 54524 and 5171, that added together give a palindrome (59695).

The spelling of 545245171 in words is "five hundred forty-five million, two hundred forty-five thousand, one hundred seventy-one".