18122033 has 4 divisors (see below), whose sum is σ = 18130548. Its totient is φ = 18113520.

The previous prime is 18122023. The next prime is 18122053. The reversal of 18122033 is 33022181.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10349089 + 7772944 = 3217^2 + 2788^2 .

It is a cyclic number.

It is not a de Polignac number, because 18122033 - 2⁸ = 18121777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18121996 and 18122014.

It is not an unprimeable number, because it can be changed into a prime (18122023) 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, 2123 + ... + 6383.

It is an arithmetic number, because the mean of its divisors is an integer number (4532637).

Almost surely, 2^18122033 is an apocalyptic number.

It is an amenable number.

18122033 is a deficient number, since it is larger than the sum of its proper divisors (8515).

18122033 is an equidigital number, since it uses as much as digits as its factorization.

18122033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 18122033 is about 4256.9981207419. The cubic root of 18122033 is about 262.6650596055.

The spelling of 18122033 in words is "eighteen million, one hundred twenty-two thousand, thirty-three".