865061 has 2 divisors, whose sum is σ = 865062. Its totient is φ = 865060.

The previous prime is 865057. The next prime is 865069. The reversal of 865061 is 160568.

865061 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., 516961 + 348100 = 719^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 865061 - 2² = 865057 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 865061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (865069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432530 + 432531.

It is an arithmetic number, because the mean of its divisors is an integer number (432531).

2⁸⁶⁵⁰⁶¹ is an apocalyptic number.

It is an amenable number.

865061 is a deficient number, since it is larger than the sum of its proper divisors (1).

865061 is an equidigital number, since it uses as much as digits as its factorization.

865061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 865061 is about 930.0865551119. The cubic root of 865061 is about 95.2830340340.

The spelling of 865061 in words is "eight hundred sixty-five thousand, sixty-one".