163441 has 4 divisors (see below), whose sum is σ = 164772. Its totient is φ = 162112.

The previous prime is 163433. The next prime is 163469. The reversal of 163441 is 144361.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90000 + 73441 = 300^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 163441 - 2³ = 163433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460 + ... + 733.

It is an arithmetic number, because the mean of its divisors is an integer number (41193).

2¹⁶³⁴⁴¹ is an apocalyptic number.

It is an amenable number.

163441 is a deficient number, since it is larger than the sum of its proper divisors (1331).

163441 is a wasteful number, since it uses less digits than its factorization.

163441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330.

The product of its digits is 288, while the sum is 19.

The square root of 163441 is about 404.2783694436. The cubic root of 163441 is about 54.6747748896.

The spelling of 163441 in words is "one hundred sixty-three thousand, four hundred forty-one".