545281291 has 2 divisors, whose sum is σ = 545281292. Its totient is φ = 545281290.

The previous prime is 545281259. The next prime is 545281327. The reversal of 545281291 is 192182545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545281291 - 2⁵ = 545281259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545281291.

It is not a weakly prime, because it can be changed into another prime (545281211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272640645 + 272640646.

It is an arithmetic number, because the mean of its divisors is an integer number (272640646).

Almost surely, 2^545281291 is an apocalyptic number.

545281291 is a deficient number, since it is larger than the sum of its proper divisors (1).

545281291 is an equidigital number, since it uses as much as digits as its factorization.

545281291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 37.

The square root of 545281291 is about 23351.2588739879. The cubic root of 545281291 is about 816.9714232487.

The spelling of 545281291 in words is "five hundred forty-five million, two hundred eighty-one thousand, two hundred ninety-one".