205142648 has 16 divisors (see below), whose sum is σ = 391900680. Its totient is φ = 100635808.

The previous prime is 205142627. The next prime is 205142659. The reversal of 205142648 is 846241502.

205142648 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241490 + ... + 242337.

Almost surely, 2^205142648 is an apocalyptic number.

It is an amenable number.

205142648 is a deficient number, since it is larger than the sum of its proper divisors (186758032).

205142648 is a wasteful number, since it uses less digits than its factorization.

205142648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483886 (or 483882 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 205142648 is about 14322.8016812354. The cubic root of 205142648 is about 589.7735873568.

The spelling of 205142648 in words is "two hundred five million, one hundred forty-two thousand, six hundred forty-eight".