19148648 has 8 divisors (see below), whose sum is σ = 35903730. Its totient is φ = 9574320.

The previous prime is 19148611. The next prime is 19148651. The reversal of 19148648 is 84684191.

It can be written as a sum of positive squares in only one way, i.e., 14730244 + 4418404 = 3838^2 + 2102^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1196783 + ... + 1196798.

Almost surely, 2^19148648 is an apocalyptic number.

It is an amenable number.

19148648 is a deficient number, since it is larger than the sum of its proper divisors (16755082).

19148648 is a wasteful number, since it uses less digits than its factorization.

19148648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393587 (or 2393583 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 19148648 is about 4375.9168182222. The cubic root of 19148648 is about 267.5342396560.

It can be divided in two parts, 191486 and 48, that multiplied together give a triangular number (9191328 = T₄₂₈₇).

The spelling of 19148648 in words is "nineteen million, one hundred forty-eight thousand, six hundred forty-eight".