18235 has 8 divisors (see below), whose sum is σ = 25056. Its totient is φ = 12480.

The previous prime is 18233. The next prime is 18251. The reversal of 18235 is 53281.

18235 = 48² + 49² + ... + 54².

It is a happy number.

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

It is not a de Polignac number, because 18235 - 2¹ = 18233 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (18233) 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, 226 + ... + 295.

It is an arithmetic number, because the mean of its divisors is an integer number (3132).

2¹⁸²³⁵ is an apocalyptic number.

18235 is a deficient number, since it is larger than the sum of its proper divisors (6821).

18235 is an equidigital number, since it uses as much as digits as its factorization.

18235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its digits is 240, while the sum is 19.

The square root of 18235 is about 135.0370319579. The cubic root of 18235 is about 26.3209719618.

It can be divided in two parts, 18 and 235, that added together give a triangular number (253 = T₂₂).

The spelling of 18235 in words is "eighteen thousand, two hundred thirty-five".