8518501 has 2 divisors, whose sum is σ = 8518502. Its totient is φ = 8518500.

The previous prime is 8518493. The next prime is 8518507. The reversal of 8518501 is 1058158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6630625 + 1887876 = 2575^2 + 1374^2 .

It is a cyclic number.

It is not a de Polignac number, because 8518501 - 2³ = 8518493 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8518501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8518507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4259250 + 4259251.

It is an arithmetic number, because the mean of its divisors is an integer number (4259251).

Almost surely, 2^8518501 is an apocalyptic number.

It is an amenable number.

8518501 is a deficient number, since it is larger than the sum of its proper divisors (1).

8518501 is an equidigital number, since it uses as much as digits as its factorization.

8518501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 8518501 is about 2918.6471181011. The cubic root of 8518501 is about 204.2307158391.

The spelling of 8518501 in words is "eight million, five hundred eighteen thousand, five hundred one".