818108131 has 2 divisors, whose sum is σ = 818108132. Its totient is φ = 818108130.

The previous prime is 818108107. The next prime is 818108141. The reversal of 818108131 is 131801818.

818108131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 818108131 - 2¹³ = 818099939 is a prime.

It is a super-2 number, since 2×818108131² = 1338601828016626322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 818108093 and 818108102.

It is not a weakly prime, because it can be changed into another prime (818108141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409054065 + 409054066.

It is an arithmetic number, because the mean of its divisors is an integer number (409054066).

Almost surely, 2^818108131 is an apocalyptic number.

818108131 is a deficient number, since it is larger than the sum of its proper divisors (1).

818108131 is an equidigital number, since it uses as much as digits as its factorization.

818108131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 31.

The square root of 818108131 is about 28602.5895855603. The cubic root of 818108131 is about 935.2697825027.

Adding to 818108131 its reverse (131801818), we get a palindrome (949909949).

The spelling of 818108131 in words is "eight hundred eighteen million, one hundred eight thousand, one hundred thirty-one".