18114231 has 16 divisors (see below), whose sum is σ = 25682400. Its totient is φ = 11356544.

The previous prime is 18114227. The next prime is 18114281. The reversal of 18114231 is 13241181.

It is a happy number.

It is not a de Polignac number, because 18114231 - 2² = 18114227 is a prime.

It is a super-2 number, since 2×18114231² = 656250729442722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18114198 and 18114207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18114281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14125 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (1605150).

Almost surely, 2^18114231 is an apocalyptic number.

18114231 is a deficient number, since it is larger than the sum of its proper divisors (7568169).

18114231 is an equidigital number, since it uses as much as digits as its factorization.

18114231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1249 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

The square root of 18114231 is about 4256.0816486529. The cubic root of 18114231 is about 262.6273595130.

The spelling of 18114231 in words is "eighteen million, one hundred fourteen thousand, two hundred thirty-one".