102649648 has 10 divisors (see below), whose sum is σ = 198883724. Its totient is φ = 51324816.

The previous prime is 102649639. The next prime is 102649681. The reversal of 102649648 is 846946201.

It is a self number, because there is not a number n which added to its sum of digits gives 102649648.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3207786 + ... + 3207817.

Almost surely, 2^102649648 is an apocalyptic number.

It is an amenable number.

102649648 is a deficient number, since it is larger than the sum of its proper divisors (96234076).

102649648 is an equidigital number, since it uses as much as digits as its factorization.

102649648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415611 (or 6415605 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 102649648 is about 10131.6162580311. The cubic root of 102649648 is about 468.2227249701. Note that the first 3 decimals are identical.

The spelling of 102649648 in words is "one hundred two million, six hundred forty-nine thousand, six hundred forty-eight".