548239 has 2 divisors, whose sum is σ = 548240. Its totient is φ = 548238.

The previous prime is 548227. The next prime is 548243. The reversal of 548239 is 932845.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 548239 - 2⁹ = 547727 is a prime.

It is a super-2 number, since 2×548239² = 601132002242, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 5⁶ + 4 + 2¹⁰ + 8² + 3¹² + 9² .

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 548239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548039) 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, 274119 + 274120.

It is an arithmetic number, because the mean of its divisors is an integer number (274120).

2⁵⁴⁸²³⁹ is an apocalyptic number.

548239 is a deficient number, since it is larger than the sum of its proper divisors (1).

548239 is an equidigital number, since it uses as much as digits as its factorization.

548239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 548239 is about 740.4316308749. The cubic root of 548239 is about 81.8445896425.

It can be divided in two parts, 548 and 239, that added together give a palindrome (787).

The spelling of 548239 in words is "five hundred forty-eight thousand, two hundred thirty-nine".