8518157 has 2 divisors, whose sum is σ = 8518158. Its totient is φ = 8518156.

The previous prime is 8518121. The next prime is 8518183. The reversal of 8518157 is 7518158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5317636 + 3200521 = 2306^2 + 1789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8518157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8518357) 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 as a sum of consecutive naturals, namely, 4259078 + 4259079.

It is an arithmetic number, because the mean of its divisors is an integer number (4259079).

Almost surely, 2^8518157 is an apocalyptic number.

It is an amenable number.

8518157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8518157 is an equidigital number, since it uses as much as digits as its factorization.

8518157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 35.

The square root of 8518157 is about 2918.5881860927. The cubic root of 8518157 is about 204.2279666734.

Subtracting from 8518157 its reverse (7518158), we obtain a palindrome (999999).

The spelling of 8518157 in words is "eight million, five hundred eighteen thousand, one hundred fifty-seven".