648311282 has 8 divisors (see below), whose sum is σ = 975535596. Its totient is φ = 323132752.

The previous prime is 648311273. The next prime is 648311291. The reversal of 648311282 is 282113846.

648311282 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (648311273) and next prime (648311291).

It can be written as a sum of positive squares in 2 ways, for example, as 647142721 + 1168561 = 25439^2 + 1081^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510653 + ... + 511920.

Almost surely, 2^648311282 is an apocalyptic number.

648311282 is a deficient number, since it is larger than the sum of its proper divisors (327224314).

648311282 is a wasteful number, since it uses less digits than its factorization.

648311282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022892.

The product of its digits is 18432, while the sum is 35.

The square root of 648311282 is about 25461.9575445408. The cubic root of 648311282 is about 865.4882836853.

The spelling of 648311282 in words is "six hundred forty-eight million, three hundred eleven thousand, two hundred eighty-two".