18360133 has 4 divisors (see below), whose sum is σ = 20029248. Its totient is φ = 16691020.

The previous prime is 18360131. The next prime is 18360143. The reversal of 18360133 is 33106381.

It is a happy number.

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 18360133 - 2¹ = 18360131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18360098 and 18360107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18360131) 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, 834541 + ... + 834562.

It is an arithmetic number, because the mean of its divisors is an integer number (5007312).

Almost surely, 2^18360133 is an apocalyptic number.

It is an amenable number.

18360133 is a deficient number, since it is larger than the sum of its proper divisors (1669115).

18360133 is a wasteful number, since it uses less digits than its factorization.

18360133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669114.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 18360133 is about 4284.8725768685. The cubic root of 18360133 is about 263.8104173414.

The spelling of 18360133 in words is "eighteen million, three hundred sixty thousand, one hundred thirty-three".