163941 has 4 divisors (see below), whose sum is σ = 218592. Its totient is φ = 109292.

The previous prime is 163927. The next prime is 163973. The reversal of 163941 is 149361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 149361 = 3 ⋅49787.

It is a cyclic number.

It is not a de Polignac number, because 163941 - 2⁵ = 163909 is a prime.

It is a D-number.

163941 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27321 + ... + 27326.

It is an arithmetic number, because the mean of its divisors is an integer number (54648).

2¹⁶³⁹⁴¹ is an apocalyptic number.

It is an amenable number.

163941 is a deficient number, since it is larger than the sum of its proper divisors (54651).

163941 is an equidigital number, since it uses as much as digits as its factorization.

163941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54650.

The product of its digits is 648, while the sum is 24.

The square root of 163941 is about 404.8962830158. The cubic root of 163941 is about 54.7304719664.

The spelling of 163941 in words is "one hundred sixty-three thousand, nine hundred forty-one".