10204681 has 2 divisors, whose sum is σ = 10204682. Its totient is φ = 10204680.

The previous prime is 10204679. The next prime is 10204693. The reversal of 10204681 is 18640201.

10204681 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., 8462281 + 1742400 = 2909^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 10204681 - 2¹ = 10204679 is a prime.

It is a super-2 number, since 2×10204681² = 208271028623522, which contains 22 as substring.

Together with 10204679, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10204081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5102340 + 5102341.

It is an arithmetic number, because the mean of its divisors is an integer number (5102341).

Almost surely, 2^10204681 is an apocalyptic number.

It is an amenable number.

10204681 is a deficient number, since it is larger than the sum of its proper divisors (1).

10204681 is an equidigital number, since it uses as much as digits as its factorization.

10204681 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 22.

The square root of 10204681 is about 3194.4766394513. The cubic root of 10204681 is about 216.9034589357.

Adding to 10204681 its reverse (18640201), we get a palindrome (28844882).

The spelling of 10204681 in words is "ten million, two hundred four thousand, six hundred eighty-one".