8135881223 has 2 divisors, whose sum is σ = 8135881224. Its totient is φ = 8135881222.

The previous prime is 8135881189. The next prime is 8135881231. The reversal of 8135881223 is 3221885318.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8135881223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8135881423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4067940611 + 4067940612.

It is an arithmetic number, because the mean of its divisors is an integer number (4067940612).

Almost surely, 2^8135881223 is an apocalyptic number.

8135881223 is a deficient number, since it is larger than the sum of its proper divisors (1).

8135881223 is an equidigital number, since it uses as much as digits as its factorization.

8135881223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 41.

The square root of 8135881223 is about 90199.1198571250. The cubic root of 8135881223 is about 2011.2599233465.

The spelling of 8135881223 in words is "eight billion, one hundred thirty-five million, eight hundred eighty-one thousand, two hundred twenty-three".