86205241 has 2 divisors, whose sum is σ = 86205242. Its totient is φ = 86205240.

The previous prime is 86205221. The next prime is 86205263. The reversal of 86205241 is 14250268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81812025 + 4393216 = 9045^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 86205241 - 2⁵ = 86205209 is a prime.

It is not a weakly prime, because it can be changed into another prime (86205221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43102620 + 43102621.

It is an arithmetic number, because the mean of its divisors is an integer number (43102621).

Almost surely, 2^86205241 is an apocalyptic number.

It is an amenable number.

86205241 is a deficient number, since it is larger than the sum of its proper divisors (1).

86205241 is an equidigital number, since it uses as much as digits as its factorization.

86205241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 86205241 is about 9284.6777542357. The cubic root of 86205241 is about 441.7513547978.

It can be divided in two parts, 8620 and 5241, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 86205241 in words is "eighty-six million, two hundred five thousand, two hundred forty-one".