1648123107 has 12 divisors (see below), whose sum is σ = 2202727320. Its totient is φ = 1096138752.

The previous prime is 1648123073. The next prime is 1648123133. The reversal of 1648123107 is 7013218461.

It is not a de Polignac number, because 1648123107 - 2⁷ = 1648122979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1648123007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1773619 + ... + 1774547.

It is an arithmetic number, because the mean of its divisors is an integer number (183560610).

Almost surely, 2^1648123107 is an apocalyptic number.

1648123107 is a deficient number, since it is larger than the sum of its proper divisors (554604213).

1648123107 is an frugal number, since it uses more digits than its factorization.

1648123107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1648123107 is about 40597.0824936965. The cubic root of 1648123107 is about 1181.2175279111.

The spelling of 1648123107 in words is "one billion, six hundred forty-eight million, one hundred twenty-three thousand, one hundred seven".