918163 has 4 divisors (see below), whose sum is σ = 920160. Its totient is φ = 916168.

The previous prime is 918161. The next prime is 918173. The reversal of 918163 is 361819.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361819 = 181 ⋅1999.

It is a cyclic number.

It is not a de Polignac number, because 918163 - 2¹ = 918161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918161) 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, 81 + ... + 1357.

It is an arithmetic number, because the mean of its divisors is an integer number (230040).

2⁹¹⁸¹⁶³ is an apocalyptic number.

918163 is a deficient number, since it is larger than the sum of its proper divisors (1997).

918163 is a wasteful number, since it uses less digits than its factorization.

918163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996.

The product of its digits is 1296, while the sum is 28.

The square root of 918163 is about 958.2082237176. The cubic root of 918163 is about 97.1941059498.

It can be divided in two parts, 91816 and 3, that added together give a palindrome (91819).

The spelling of 918163 in words is "nine hundred eighteen thousand, one hundred sixty-three".