545321311 has 2 divisors, whose sum is σ = 545321312. Its totient is φ = 545321310.

The previous prime is 545321303. The next prime is 545321317. The reversal of 545321311 is 113123545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545321311 - 2³ = 545321303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545321317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272660655 + 272660656.

It is an arithmetic number, because the mean of its divisors is an integer number (272660656).

Almost surely, 2^545321311 is an apocalyptic number.

545321311 is a deficient number, since it is larger than the sum of its proper divisors (1).

545321311 is an equidigital number, since it uses as much as digits as its factorization.

545321311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 545321311 is about 23352.1157713814. The cubic root of 545321311 is about 816.9914095059.

Adding to 545321311 its reverse (113123545), we get a palindrome (658444856).

The spelling of 545321311 in words is "five hundred forty-five million, three hundred twenty-one thousand, three hundred eleven".