648411241 has 2 divisors, whose sum is σ = 648411242. Its totient is φ = 648411240.

The previous prime is 648411217. The next prime is 648411277. The reversal of 648411241 is 142114846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364657216 + 283754025 = 19096^2 + 16845^2 .

It is a cyclic number.

It is not a de Polignac number, because 648411241 - 2⁵ = 648411209 is a prime.

It is not a weakly prime, because it can be changed into another prime (648411641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324205620 + 324205621.

It is an arithmetic number, because the mean of its divisors is an integer number (324205621).

Almost surely, 2^648411241 is an apocalyptic number.

It is an amenable number.

648411241 is a deficient number, since it is larger than the sum of its proper divisors (1).

648411241 is an equidigital number, since it uses as much as digits as its factorization.

648411241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 31.

The square root of 648411241 is about 25463.9203776638. The cubic root of 648411241 is about 865.5327627803.

The spelling of 648411241 in words is "six hundred forty-eight million, four hundred eleven thousand, two hundred forty-one".