163401 has 16 divisors (see below), whose sum is σ = 258048. Its totient is φ = 90000.

The previous prime is 163393. The next prime is 163403. The reversal of 163401 is 104361.

It is not a de Polignac number, because 163401 - 2³ = 163393 is a prime.

163401 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (163403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526 + ... + 776.

It is an arithmetic number, because the mean of its divisors is an integer number (16128).

2¹⁶³⁴⁰¹ is an apocalyptic number.

It is an amenable number.

163401 is a deficient number, since it is larger than the sum of its proper divisors (94647).

163401 is a wasteful number, since it uses less digits than its factorization.

163401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 163401 is about 404.2288955530. The cubic root of 163401 is about 54.6703142189.

Adding to 163401 its reverse (104361), we get a palindrome (267762).

The spelling of 163401 in words is "one hundred sixty-three thousand, four hundred one".