18452133 has 24 divisors (see below), whose sum is σ = 30617600. Its totient is φ = 10489824.

The previous prime is 18452129. The next prime is 18452143. The reversal of 18452133 is 33125481.

It is a happy number.

It is not a de Polignac number, because 18452133 - 2² = 18452129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18452097 and 18452106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18452113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13788 + ... + 15066.

Almost surely, 2^18452133 is an apocalyptic number.

It is an amenable number.

18452133 is a deficient number, since it is larger than the sum of its proper divisors (12165467).

18452133 is a wasteful number, since it uses less digits than its factorization.

18452133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521 (or 1518 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 18452133 is about 4295.5946037772. The cubic root of 18452133 is about 264.2503221450.

The spelling of 18452133 in words is "eighteen million, four hundred fifty-two thousand, one hundred thirty-three".