18104273 has 4 divisors (see below), whose sum is σ = 19750128. Its totient is φ = 16458420.

The previous prime is 18104267. The next prime is 18104287. The reversal of 18104273 is 37240181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 18104273 - 2⁴ = 18104257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18104173) 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, 822911 + ... + 822932.

It is an arithmetic number, because the mean of its divisors is an integer number (4937532).

Almost surely, 2^18104273 is an apocalyptic number.

It is an amenable number.

18104273 is a deficient number, since it is larger than the sum of its proper divisors (1645855).

18104273 is a wasteful number, since it uses less digits than its factorization.

18104273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645854.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18104273 is about 4254.9116324549. The cubic root of 18104273 is about 262.5792256706.

The spelling of 18104273 in words is "eighteen million, one hundred four thousand, two hundred seventy-three".