18386133 has 8 divisors (see below), whose sum is σ = 24535968. Its totient is φ = 12246864.

The previous prime is 18386107. The next prime is 18386149. The reversal of 18386133 is 33168381.

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 18386133 - 2⁸ = 18385877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18386094 and 18386103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18386183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3391 + ... + 6947.

It is an arithmetic number, because the mean of its divisors is an integer number (3066996).

Almost surely, 2^18386133 is an apocalyptic number.

It is an amenable number.

18386133 is a deficient number, since it is larger than the sum of its proper divisors (6149835).

18386133 is a wasteful number, since it uses less digits than its factorization.

18386133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283.

The product of its digits is 10368, while the sum is 33.

The square root of 18386133 is about 4287.9054327259. The cubic root of 18386133 is about 263.9348869492.

The spelling of 18386133 in words is "eighteen million, three hundred eighty-six thousand, one hundred thirty-three".