18094331 has 2 divisors, whose sum is σ = 18094332. Its totient is φ = 18094330.

The previous prime is 18094313. The next prime is 18094333. The reversal of 18094331 is 13349081.

Together with previous prime (18094313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18094331 - 2¹⁰ = 18093307 is a prime.

It is a super-2 number, since 2×18094331² = 654809628675122, which contains 22 as substring.

Together with 18094333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18094294 and 18094303.

It is not a weakly prime, because it can be changed into another prime (18094333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9047165 + 9047166.

It is an arithmetic number, because the mean of its divisors is an integer number (9047166).

Almost surely, 2^18094331 is an apocalyptic number.

18094331 is a deficient number, since it is larger than the sum of its proper divisors (1).

18094331 is an equidigital number, since it uses as much as digits as its factorization.

18094331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 18094331 is about 4253.7431751341. The cubic root of 18094331 is about 262.5311515562.

The spelling of 18094331 in words is "eighteen million, ninety-four thousand, three hundred thirty-one".