18232133 has 4 divisors (see below), whose sum is σ = 18409248. Its totient is φ = 18055020.

The previous prime is 18232127. The next prime is 18232141. The reversal of 18232133 is 33123281.

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 18232133 - 2⁴ = 18232117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18232099 and 18232108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18232163) 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 3 ways as a sum of consecutive naturals, for example, 88403 + ... + 88608.

It is an arithmetic number, because the mean of its divisors is an integer number (4602312).

Almost surely, 2^18232133 is an apocalyptic number.

It is an amenable number.

18232133 is a deficient number, since it is larger than the sum of its proper divisors (177115).

18232133 is a wasteful number, since it uses less digits than its factorization.

18232133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177114.

The product of its digits is 864, while the sum is 23.

The square root of 18232133 is about 4269.9101864091. The cubic root of 18232133 is about 263.1959245018.

The spelling of 18232133 in words is "eighteen million, two hundred thirty-two thousand, one hundred thirty-three".