163205049 has 32 divisors (see below), whose sum is σ = 271835136. Its totient is φ = 84936960.

The previous prime is 163205047. The next prime is 163205057. The reversal of 163205049 is 940502361.

It is not a de Polignac number, because 163205049 - 2¹ = 163205047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163205047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3694 + ... + 18440.

It is an arithmetic number, because the mean of its divisors is an integer number (8494848).

Almost surely, 2^163205049 is an apocalyptic number.

It is an amenable number.

163205049 is a deficient number, since it is larger than the sum of its proper divisors (108630087).

163205049 is a wasteful number, since it uses less digits than its factorization.

163205049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14805.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 163205049 is about 12775.1731495115. The cubic root of 163205049 is about 546.4845187243.

The spelling of 163205049 in words is "one hundred sixty-three million, two hundred five thousand, forty-nine".