8118137 has 2 divisors, whose sum is σ = 8118138. Its totient is φ = 8118136.

The previous prime is 8118109. The next prime is 8118139. The reversal of 8118137 is 7318118.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4946176 + 3171961 = 2224^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 8118137 - 2⁸ = 8117881 is a prime.

Together with 8118139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8118139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4059068 + 4059069.

It is an arithmetic number, because the mean of its divisors is an integer number (4059069).

Almost surely, 2^8118137 is an apocalyptic number.

It is an amenable number.

8118137 is a deficient number, since it is larger than the sum of its proper divisors (1).

8118137 is an equidigital number, since it uses as much as digits as its factorization.

8118137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 29.

The square root of 8118137 is about 2849.2344585871. The cubic root of 8118137 is about 200.9796684137.

It can be divided in two parts, 81181 and 37, that added together give a palindrome (81218).

The spelling of 8118137 in words is "eight million, one hundred eighteen thousand, one hundred thirty-seven".