648012514 has 4 divisors (see below), whose sum is σ = 972018774. Its totient is φ = 324006256.

The previous prime is 648012509. The next prime is 648012523. The reversal of 648012514 is 415210846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 415210846 = 2 ⋅207605423.

It can be written as a sum of positive squares in only one way, i.e., 581051025 + 66961489 = 24105^2 + 8183^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 162003127 + ... + 162003130.

Almost surely, 2^648012514 is an apocalyptic number.

648012514 is a deficient number, since it is larger than the sum of its proper divisors (324006260).

648012514 is a wasteful number, since it uses less digits than its factorization.

648012514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324006259.

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

The square root of 648012514 is about 25456.0899197029. The cubic root of 648012514 is about 865.3553126150.

The spelling of 648012514 in words is "six hundred forty-eight million, twelve thousand, five hundred fourteen".