8650121 has 2 divisors, whose sum is σ = 8650122. Its totient is φ = 8650120.

The previous prime is 8650087. The next prime is 8650123. The reversal of 8650121 is 1210568.

8650121 is nontrivially palindromic in base 6.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5175625 + 3474496 = 2275^2 + 1864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8650121 is a prime.

It is a Sophie Germain prime.

Together with 8650123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8650123) 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, 4325060 + 4325061.

It is an arithmetic number, because the mean of its divisors is an integer number (4325061).

Almost surely, 2^8650121 is an apocalyptic number.

It is an amenable number.

8650121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8650121 is an equidigital number, since it uses as much as digits as its factorization.

8650121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 8650121 is about 2941.1088045157. The cubic root of 8650121 is about 205.2772057920.

Adding to 8650121 its reverse (1210568), we get a palindrome (9860689).

The spelling of 8650121 in words is "eight million, six hundred fifty thousand, one hundred twenty-one".