649104124 has 6 divisors (see below), whose sum is σ = 1135932224. Its totient is φ = 324552060.

The previous prime is 649104121. The next prime is 649104143. The reversal of 649104124 is 421401946.

649104124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649104121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81138012 + ... + 81138019.

Almost surely, 2^649104124 is an apocalyptic number.

It is an amenable number.

649104124 is a deficient number, since it is larger than the sum of its proper divisors (486828100).

649104124 is a wasteful number, since it uses less digits than its factorization.

649104124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162276035 (or 162276033 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 649104124 is about 25477.5219360125. The cubic root of 649104124 is about 865.8409516843.

The spelling of 649104124 in words is "six hundred forty-nine million, one hundred four thousand, one hundred twenty-four".