648110245 has 8 divisors (see below), whose sum is σ = 778097016. Its totient is φ = 518245056.

The previous prime is 648110207. The next prime is 648110249. The reversal of 648110245 is 542011846.

It can be written as a sum of positive squares in 4 ways, for example, as 488896321 + 159213924 = 22111^2 + 12618^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 648110245 - 2⁷ = 648110117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648110249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18222 + ... + 40351.

It is an arithmetic number, because the mean of its divisors is an integer number (97262127).

Almost surely, 2^648110245 is an apocalyptic number.

It is an amenable number.

648110245 is a deficient number, since it is larger than the sum of its proper divisors (129986771).

648110245 is a wasteful number, since it uses less digits than its factorization.

648110245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60791.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 648110245 is about 25458.0094469304. The cubic root of 648110245 is about 865.3988137239.

The spelling of 648110245 in words is "six hundred forty-eight million, one hundred ten thousand, two hundred forty-five".