865748201 has 2 divisors, whose sum is σ = 865748202. Its totient is φ = 865748200.

The previous prime is 865748141. The next prime is 865748203. The reversal of 865748201 is 102847568.

865748201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820536025 + 45212176 = 28645^2 + 6724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-865748201 is a prime.

Together with 865748203, 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 (865748203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432874100 + 432874101.

It is an arithmetic number, because the mean of its divisors is an integer number (432874101).

Almost surely, 2^865748201 is an apocalyptic number.

It is an amenable number.

865748201 is a deficient number, since it is larger than the sum of its proper divisors (1).

865748201 is an equidigital number, since it uses as much as digits as its factorization.

865748201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 865748201 is about 29423.5993889259. The cubic root of 865748201 is about 953.0825817632.

The spelling of 865748201 in words is "eight hundred sixty-five million, seven hundred forty-eight thousand, two hundred one".