163018 has 4 divisors (see below), whose sum is σ = 244530. Its totient is φ = 81508.

The previous prime is 163003. The next prime is 163019. The reversal of 163018 is 810361.

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

It can be written as a sum of positive squares in only one way, i.e., 117649 + 45369 = 343^2 + 213^2 .

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 162986 and 163004.

It is not an unprimeable number, because it can be changed into a prime (163019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40753 + ... + 40756.

2¹⁶³⁰¹⁸ is an apocalyptic number.

163018 is a deficient number, since it is larger than the sum of its proper divisors (81512).

163018 is an equidigital number, since it uses as much as digits as its factorization.

163018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81511.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 163018 is about 403.7548761315. The cubic root of 163018 is about 54.6275663955.

Adding to 163018 its reverse (810361), we get a palindrome (973379).

The spelling of 163018 in words is "one hundred sixty-three thousand, eighteen".