648133 has 2 divisors, whose sum is σ = 648134. Its totient is φ = 648132.

The previous prime is 648119. The next prime is 648173. The reversal of 648133 is 331846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605284 + 42849 = 778^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 648133 - 2⁵ = 648101 is a prime.

648133 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 648098 and 648107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648173) 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, 324066 + 324067.

It is an arithmetic number, because the mean of its divisors is an integer number (324067).

2⁶⁴⁸¹³³ is an apocalyptic number.

It is an amenable number.

648133 is a deficient number, since it is larger than the sum of its proper divisors (1).

648133 is an equidigital number, since it uses as much as digits as its factorization.

648133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 648133 is about 805.0670779507. The cubic root of 648133 is about 86.5408941589.

Adding to 648133 its reverse (331846), we get a palindrome (979979).

The spelling of 648133 in words is "six hundred forty-eight thousand, one hundred thirty-three".