10021289 has 2 divisors, whose sum is σ = 10021290. Its totient is φ = 10021288.

The previous prime is 10021283. The next prime is 10021301. The reversal of 10021289 is 98212001.

10021289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9241600 + 779689 = 3040^2 + 883^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021289 - 2¹² = 10017193 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10021283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010644 + 5010645.

It is an arithmetic number, because the mean of its divisors is an integer number (5010645).

Almost surely, 2^10021289 is an apocalyptic number.

It is an amenable number.

10021289 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021289 is an equidigital number, since it uses as much as digits as its factorization.

10021289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 10021289 is about 3165.6419570128. The cubic root of 10021289 is about 215.5962465055.

The spelling of 10021289 in words is "ten million, twenty-one thousand, two hundred eighty-nine".