2018231 has 4 divisors (see below), whose sum is σ = 2045952. Its totient is φ = 1990512.

The previous prime is 2018183. The next prime is 2018249. The reversal of 2018231 is 1328102.

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

It is a cyclic number.

It is not a de Polignac number, because 2018231 - 2⁶ = 2018167 is a prime.

It is a super-2 number, since 2×2018231² = 8146512738722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018251) 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, 13751 + ... + 13896.

It is an arithmetic number, because the mean of its divisors is an integer number (511488).

2^2018231 is an apocalyptic number.

2018231 is a deficient number, since it is larger than the sum of its proper divisors (27721).

2018231 is an equidigital number, since it uses as much as digits as its factorization.

2018231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27720.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2018231 is about 1420.6445720165. The cubic root of 2018231 is about 126.3737746358.

The spelling of 2018231 in words is "two million, eighteen thousand, two hundred thirty-one".