648136583 has 2 divisors, whose sum is σ = 648136584. Its totient is φ = 648136582.

The previous prime is 648136571. The next prime is 648136589. The reversal of 648136583 is 385631846.

648136583 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648136583 - 2⁸ = 648136327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648136589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324068291 + 324068292.

It is an arithmetic number, because the mean of its divisors is an integer number (324068292).

Almost surely, 2^648136583 is an apocalyptic number.

648136583 is a deficient number, since it is larger than the sum of its proper divisors (1).

648136583 is an equidigital number, since it uses as much as digits as its factorization.

648136583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 44.

The square root of 648136583 is about 25458.5267248519. The cubic root of 648136583 is about 865.4105363001.

The spelling of 648136583 in words is "six hundred forty-eight million, one hundred thirty-six thousand, five hundred eighty-three".