544321543 has 2 divisors, whose sum is σ = 544321544. Its totient is φ = 544321542.

The previous prime is 544321489. The next prime is 544321559. The reversal of 544321543 is 345123445.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 544321543 - 2¹³ = 544313351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544325543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272160771 + 272160772.

It is an arithmetic number, because the mean of its divisors is an integer number (272160772).

Almost surely, 2^544321543 is an apocalyptic number.

544321543 is a deficient number, since it is larger than the sum of its proper divisors (1).

544321543 is an equidigital number, since it uses as much as digits as its factorization.

544321543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 31.

The square root of 544321543 is about 23330.6995823100. The cubic root of 544321543 is about 816.4918254241.

Adding to 544321543 its reverse (345123445), we get a palindrome (889444988).

The spelling of 544321543 in words is "five hundred forty-four million, three hundred twenty-one thousand, five hundred forty-three".