18112433 has 4 divisors (see below), whose sum is σ = 18128880. Its totient is φ = 18095988.

The previous prime is 18112399. The next prime is 18112441. The reversal of 18112433 is 33421181.

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 a cyclic number.

It is not a de Polignac number, because 18112433 - 2²² = 13918129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18112399 and 18112408.

It is not an unprimeable number, because it can be changed into a prime (18112483) 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, 6443 + ... + 8816.

It is an arithmetic number, because the mean of its divisors is an integer number (4532220).

Almost surely, 2^18112433 is an apocalyptic number.

It is an amenable number.

18112433 is a deficient number, since it is larger than the sum of its proper divisors (16447).

18112433 is a wasteful number, since it uses less digits than its factorization.

18112433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16446.

The product of its digits is 576, while the sum is 23.

The square root of 18112433 is about 4255.8704162603. The cubic root of 18112433 is about 262.6186698513.

The spelling of 18112433 in words is "eighteen million, one hundred twelve thousand, four hundred thirty-three".