218126036 has 12 divisors (see below), whose sum is σ = 381846612. Its totient is φ = 109027008.

The previous prime is 218126033. The next prime is 218126053. The reversal of 218126036 is 630621812.

It can be written as a sum of positive squares in 2 ways, for example, as 167857936 + 50268100 = 12956^2 + 7090^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218126033) 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, 8336 + ... + 22488.

It is an arithmetic number, because the mean of its divisors is an integer number (31820551).

Almost surely, 2^218126036 is an apocalyptic number.

It is an amenable number.

218126036 is a deficient number, since it is larger than the sum of its proper divisors (163720576).

218126036 is a wasteful number, since it uses less digits than its factorization.

218126036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18010 (or 18008 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 218126036 is about 14769.0905610332. The cubic root of 218126036 is about 601.9621282784.

Adding to 218126036 its reverse (630621812), we get a palindrome (848747848).

The spelling of 218126036 in words is "two hundred eighteen million, one hundred twenty-six thousand, thirty-six".