18226163 has 8 divisors (see below), whose sum is σ = 18799968. Its totient is φ = 17656704.

The previous prime is 18226147. The next prime is 18226199. The reversal of 18226163 is 36162281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18226163 - 2⁴ = 18226147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18226463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8795 + ... + 10667.

It is an arithmetic number, because the mean of its divisors is an integer number (2349996).

Almost surely, 2^18226163 is an apocalyptic number.

18226163 is a deficient number, since it is larger than the sum of its proper divisors (573805).

18226163 is a wasteful number, since it uses less digits than its factorization.

18226163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173.

The product of its digits is 3456, while the sum is 29.

The square root of 18226163 is about 4269.2110512365. The cubic root of 18226163 is about 263.1671940693.

The spelling of 18226163 in words is "eighteen million, two hundred twenty-six thousand, one hundred sixty-three".