18475223 has 8 divisors (see below), whose sum is σ = 20094816. Its totient is φ = 16884000.

The previous prime is 18475211. The next prime is 18475229. The reversal of 18475223 is 32257481.

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

It is a cyclic number.

It is not a de Polignac number, because 18475223 - 2⁶ = 18475159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18475223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18475229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5723 + ... + 8348.

It is an arithmetic number, because the mean of its divisors is an integer number (2511852).

Almost surely, 2^18475223 is an apocalyptic number.

18475223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18475223 is a deficient number, since it is larger than the sum of its proper divisors (1619593).

18475223 is a wasteful number, since it uses less digits than its factorization.

18475223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14185.

The product of its digits is 13440, while the sum is 32.

The square root of 18475223 is about 4298.2814007461. The cubic root of 18475223 is about 264.3604990491.

The spelling of 18475223 in words is "eighteen million, four hundred seventy-five thousand, two hundred twenty-three".