18104158 has 8 divisors (see below), whose sum is σ = 27276552. Its totient is φ = 9011976.

The previous prime is 18104153. The next prime is 18104159. The reversal of 18104158 is 85140181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18104153) 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, 19485 + ... + 20392.

It is an arithmetic number, because the mean of its divisors is an integer number (3409569).

Almost surely, 2^18104158 is an apocalyptic number.

18104158 is a deficient number, since it is larger than the sum of its proper divisors (9172394).

18104158 is a wasteful number, since it uses less digits than its factorization.

18104158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40106.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 18104158 is about 4254.8981186393. The cubic root of 18104158 is about 262.5786696937.

The spelling of 18104158 in words is "eighteen million, one hundred four thousand, one hundred fifty-eight".