648150473 has 2 divisors, whose sum is σ = 648150474. Its totient is φ = 648150472.

The previous prime is 648150457. The next prime is 648150487. The reversal of 648150473 is 374051846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443860624 + 204289849 = 21068^2 + 14293^2 .

It is a cyclic number.

It is not a de Polignac number, because 648150473 - 2⁴ = 648150457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (648150413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324075236 + 324075237.

It is an arithmetic number, because the mean of its divisors is an integer number (324075237).

Almost surely, 2^648150473 is an apocalyptic number.

It is an amenable number.

648150473 is a deficient number, since it is larger than the sum of its proper divisors (1).

648150473 is an equidigital number, since it uses as much as digits as its factorization.

648150473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 648150473 is about 25458.7995200088. The cubic root of 648150473 is about 865.4167183646.

The spelling of 648150473 in words is "six hundred forty-eight million, one hundred fifty thousand, four hundred seventy-three".