539244493 has 2 divisors, whose sum is σ = 539244494. Its totient is φ = 539244492.

The previous prime is 539244479. The next prime is 539244521. The reversal of 539244493 is 394442935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534395689 + 4848804 = 23117^2 + 2202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-539244493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539242493) 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, 269622246 + 269622247.

It is an arithmetic number, because the mean of its divisors is an integer number (269622247).

Almost surely, 2^539244493 is an apocalyptic number.

It is an amenable number.

539244493 is a deficient number, since it is larger than the sum of its proper divisors (1).

539244493 is an equidigital number, since it uses as much as digits as its factorization.

539244493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 43.

The square root of 539244493 is about 23221.6384650179. The cubic root of 539244493 is about 813.9453370799.

The spelling of 539244493 in words is "five hundred thirty-nine million, two hundred forty-four thousand, four hundred ninety-three".