808305131 has 2 divisors, whose sum is σ = 808305132. Its totient is φ = 808305130.

The previous prime is 808305097. The next prime is 808305143. The reversal of 808305131 is 131503808.

808305131 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 a de Polignac number, because none of the positive numbers 2^k-808305131 is a prime.

It is a super-2 number, since 2×808305131² = 1306714369601854322, 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 = 808305094 and 808305103.

It is not a weakly prime, because it can be changed into another prime (808305151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404152565 + 404152566.

It is an arithmetic number, because the mean of its divisors is an integer number (404152566).

Almost surely, 2^808305131 is an apocalyptic number.

808305131 is a deficient number, since it is larger than the sum of its proper divisors (1).

808305131 is an equidigital number, since it uses as much as digits as its factorization.

808305131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 808305131 is about 28430.7075360428. The cubic root of 808305131 is about 931.5191308621.

Adding to 808305131 its reverse (131503808), we get a palindrome (939808939).

The spelling of 808305131 in words is "eight hundred eight million, three hundred five thousand, one hundred thirty-one".