18133005 has 16 divisors (see below), whose sum is σ = 31650624. Its totient is φ = 8791680.

The previous prime is 18132991. The next prime is 18133007. The reversal of 18133005 is 50033181.

It is a happy number.

It is not a de Polignac number, because 18133005 - 2⁸ = 18132749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18133007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54784 + ... + 55113.

It is an arithmetic number, because the mean of its divisors is an integer number (1978164).

Almost surely, 2^18133005 is an apocalyptic number.

18133005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18133005 is a deficient number, since it is larger than the sum of its proper divisors (13517619).

18133005 is a wasteful number, since it uses less digits than its factorization.

18133005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109916.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 18133005 is about 4258.2866272716. The cubic root of 18133005 is about 262.7180591706.

Adding to 18133005 its reverse (50033181), we get a palindrome (68166186).

The spelling of 18133005 in words is "eighteen million, one hundred thirty-three thousand, five".