205163047 has 8 divisors (see below), whose sum is σ = 207762416. Its totient is φ = 202580352.

The previous prime is 205163033. The next prime is 205163087. The reversal of 205163047 is 740361502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205163047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205163087) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 21583 + ... + 29599.

It is an arithmetic number, because the mean of its divisors is an integer number (25970302).

Almost surely, 2^205163047 is an apocalyptic number.

205163047 is a deficient number, since it is larger than the sum of its proper divisors (2599369).

205163047 is a wasteful number, since it uses less digits than its factorization.

205163047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8337.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 205163047 is about 14323.5137797958. The cubic root of 205163047 is about 589.7931353685.

The spelling of 205163047 in words is "two hundred five million, one hundred sixty-three thousand, forty-seven".