18114293 has 4 divisors (see below), whose sum is σ = 18362508. Its totient is φ = 17866080.

The previous prime is 18114281. The next prime is 18114307. The reversal of 18114293 is 39241181.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9102289 + 9012004 = 3017^2 + 3002^2 .

It is a cyclic number.

It is not a de Polignac number, because 18114293 - 2⁸ = 18114037 is a prime.

It is a super-4 number, since 4×18114293⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18114203) 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 3 ways as a sum of consecutive naturals, for example, 123998 + ... + 124143.

It is an arithmetic number, because the mean of its divisors is an integer number (4590627).

Almost surely, 2^18114293 is an apocalyptic number.

It is an amenable number.

18114293 is a deficient number, since it is larger than the sum of its proper divisors (248215).

18114293 is an equidigital number, since it uses as much as digits as its factorization.

18114293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248214.

The product of its digits is 1728, while the sum is 29.

The square root of 18114293 is about 4256.0889323415. The cubic root of 18114293 is about 262.6276591463.

The spelling of 18114293 in words is "eighteen million, one hundred fourteen thousand, two hundred ninety-three".