18094093 has 4 divisors (see below), whose sum is σ = 18209500. Its totient is φ = 17978688.

The previous prime is 18094091. The next prime is 18094117. The reversal of 18094093 is 39049081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39049081 = 449 ⋅86969.

It can be written as a sum of positive squares in 2 ways, for example, as 5004169 + 13089924 = 2237^2 + 3618^2 .

It is a cyclic number.

It is not a de Polignac number, because 18094093 - 2¹ = 18094091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18094091) 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, 57468 + ... + 57781.

It is an arithmetic number, because the mean of its divisors is an integer number (4552375).

Almost surely, 2^18094093 is an apocalyptic number.

It is an amenable number.

18094093 is a deficient number, since it is larger than the sum of its proper divisors (115407).

18094093 is a wasteful number, since it uses less digits than its factorization.

18094093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115406.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 18094093 is about 4253.7151996813. The cubic root of 18094093 is about 262.5300005016.

The spelling of 18094093 in words is "eighteen million, ninety-four thousand, ninety-three".