10864121 has 2 divisors, whose sum is σ = 10864122. Its totient is φ = 10864120.

The previous prime is 10864111. The next prime is 10864123. The reversal of 10864121 is 12146801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7840000 + 3024121 = 2800^2 + 1739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10864121 is a prime.

It is a Sophie Germain prime.

Together with 10864123, 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 (10864123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5432060 + 5432061.

It is an arithmetic number, because the mean of its divisors is an integer number (5432061).

Almost surely, 2^10864121 is an apocalyptic number.

It is an amenable number.

10864121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10864121 is an equidigital number, since it uses as much as digits as its factorization.

10864121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 10864121 is about 3296.0766071194. The cubic root of 10864121 is about 221.4784784787.

The spelling of 10864121 in words is "ten million, eight hundred sixty-four thousand, one hundred twenty-one".