648041 has 2 divisors, whose sum is σ = 648042. Its totient is φ = 648040.

The previous prime is 648029. The next prime is 648047. The reversal of 648041 is 140846.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648025 + 16 = 805^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 648041 - 2¹⁸ = 385897 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 647998 and 648016.

It is not a weakly prime, because it can be changed into another prime (648047) 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, 324020 + 324021.

It is an arithmetic number, because the mean of its divisors is an integer number (324021).

2⁶⁴⁸⁰⁴¹ is an apocalyptic number.

It is an amenable number.

648041 is a deficient number, since it is larger than the sum of its proper divisors (1).

648041 is an equidigital number, since it uses as much as digits as its factorization.

648041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 648041 is about 805.0099378269. The cubic root of 648041 is about 86.5367992489.

Adding to 648041 its reverse (140846), we get a palindrome (788887).

The spelling of 648041 in words is "six hundred forty-eight thousand, forty-one".