218124133 has 8 divisors (see below), whose sum is σ = 223085952. Its totient is φ = 213175776.

The previous prime is 218124131. The next prime is 218124163. The reversal of 218124133 is 331421812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 218124133 - 2¹ = 218124131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 218124098 and 218124107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218124131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34041 + ... + 39937.

It is an arithmetic number, because the mean of its divisors is an integer number (27885744).

Almost surely, 2^218124133 is an apocalyptic number.

It is an amenable number.

218124133 is a deficient number, since it is larger than the sum of its proper divisors (4961819).

218124133 is an equidigital number, since it uses as much as digits as its factorization.

218124133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6731.

The product of its digits is 1152, while the sum is 25.

The square root of 218124133 is about 14769.0261358019. The cubic root of 218124133 is about 601.9603777044.

Adding to 218124133 its reverse (331421812), we get a palindrome (549545945).

The spelling of 218124133 in words is "two hundred eighteen million, one hundred twenty-four thousand, one hundred thirty-three".