545171281 has 2 divisors, whose sum is σ = 545171282. Its totient is φ = 545171280.

The previous prime is 545171279. The next prime is 545171287. The reversal of 545171281 is 182171545.

545171281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452838400 + 92332881 = 21280^2 + 9609^2 .

It is a cyclic number.

It is not a de Polignac number, because 545171281 - 2¹ = 545171279 is a prime.

It is a super-2 number, since 2×545171281² = 594423451254361922, which contains 22 as substring.

Together with 545171279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (545171287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272585640 + 272585641.

It is an arithmetic number, because the mean of its divisors is an integer number (272585641).

Almost surely, 2^545171281 is an apocalyptic number.

It is an amenable number.

545171281 is a deficient number, since it is larger than the sum of its proper divisors (1).

545171281 is an equidigital number, since it uses as much as digits as its factorization.

545171281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 34.

The square root of 545171281 is about 23348.9032076455. The cubic root of 545171281 is about 816.9164784752.

The spelling of 545171281 in words is "five hundred forty-five million, one hundred seventy-one thousand, two hundred eighty-one".