548761 has 2 divisors, whose sum is σ = 548762. Its totient is φ = 548760.

The previous prime is 548753. The next prime is 548771. The reversal of 548761 is 167845.

548761 is nontrivially palindromic in base 5.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534361 + 14400 = 731^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 548761 - 2³ = 548753 is a prime.

It is a super-2 number, since 2×548761² = 602277270242, which contains 22 as substring.

It is a Chen prime.

548761 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (548771) 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, 274380 + 274381.

It is an arithmetic number, because the mean of its divisors is an integer number (274381).

2⁵⁴⁸⁷⁶¹ is an apocalyptic number.

It is an amenable number.

548761 is a deficient number, since it is larger than the sum of its proper divisors (1).

548761 is an equidigital number, since it uses as much as digits as its factorization.

548761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 548761 is about 740.7840441046. The cubic root of 548761 is about 81.8705572245.

The spelling of 548761 in words is "five hundred forty-eight thousand, seven hundred sixty-one".