163901 has 2 divisors, whose sum is σ = 163902. Its totient is φ = 163900.

The previous prime is 163883. The next prime is 163909. The reversal of 163901 is 109361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139876 + 24025 = 374^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 163901 - 2¹⁴ = 147517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81950 + 81951.

It is an arithmetic number, because the mean of its divisors is an integer number (81951).

2¹⁶³⁹⁰¹ is an apocalyptic number.

It is an amenable number.

163901 is a deficient number, since it is larger than the sum of its proper divisors (1).

163901 is an equidigital number, since it uses as much as digits as its factorization.

163901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 163901 is about 404.8468846366. The cubic root of 163901 is about 54.7260203711.

The spelling of 163901 in words is "one hundred sixty-three thousand, nine hundred one".