648514120 has 16 divisors (see below), whose sum is σ = 1459156860. Its totient is φ = 259405632.

The previous prime is 648514117. The next prime is 648514127. The reversal of 648514120 is 21415846.

It can be written as a sum of positive squares in 2 ways, for example, as 643839876 + 4674244 = 25374^2 + 2162^2 .

It is not an unprimeable number, because it can be changed into a prime (648514127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8106387 + ... + 8106466.

Almost surely, 2^648514120 is an apocalyptic number.

It is an amenable number.

648514120 is an abundant number, since it is smaller than the sum of its proper divisors (810642740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648514120 is a wasteful number, since it uses less digits than its factorization.

648514120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16212864 (or 16212860 counting only the distinct ones).

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

The square root of 648514120 is about 25465.9403910400. The cubic root of 648514120 is about 865.5785364244.

Adding to 648514120 its reverse (21415846), we get a palindrome (669929966).

The spelling of 648514120 in words is "six hundred forty-eight million, five hundred fourteen thousand, one hundred twenty".