163205753 has 2 divisors, whose sum is σ = 163205754. Its totient is φ = 163205752.

The previous prime is 163205747. The next prime is 163205767. The reversal of 163205753 is 357502361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117332224 + 45873529 = 10832^2 + 6773^2 .

It is a cyclic number.

It is not a de Polignac number, because 163205753 - 2⁶ = 163205689 is a prime.

It is a super-2 number, since 2×163205753² = 53272235624594018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (163205153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81602876 + 81602877.

It is an arithmetic number, because the mean of its divisors is an integer number (81602877).

Almost surely, 2^163205753 is an apocalyptic number.

It is an amenable number.

163205753 is a deficient number, since it is larger than the sum of its proper divisors (1).

163205753 is an equidigital number, since it uses as much as digits as its factorization.

163205753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 163205753 is about 12775.2007029244. The cubic root of 163205753 is about 546.4853044936.

The spelling of 163205753 in words is "one hundred sixty-three million, two hundred five thousand, seven hundred fifty-three".