163984201 has 2 divisors, whose sum is σ = 163984202. Its totient is φ = 163984200.

The previous prime is 163984199. The next prime is 163984217. The reversal of 163984201 is 102489361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117744201 + 46240000 = 10851^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 163984201 - 2¹ = 163984199 is a prime.

Together with 163984199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (163984291) 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 as a sum of consecutive naturals, namely, 81992100 + 81992101.

It is an arithmetic number, because the mean of its divisors is an integer number (81992101).

Almost surely, 2^163984201 is an apocalyptic number.

It is an amenable number.

163984201 is a deficient number, since it is larger than the sum of its proper divisors (1).

163984201 is an equidigital number, since it uses as much as digits as its factorization.

163984201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 163984201 is about 12805.6316126929. The cubic root of 163984201 is about 547.3527898738.

The spelling of 163984201 in words is "one hundred sixty-three million, nine hundred eighty-four thousand, two hundred one".