286861241 has 2 divisors, whose sum is σ = 286861242. Its totient is φ = 286861240.

The previous prime is 286861231. The next prime is 286861261. The reversal of 286861241 is 142168682.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243235216 + 43626025 = 15596^2 + 6605^2 .

It is a cyclic number.

It is not a de Polignac number, because 286861241 - 2⁶ = 286861177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 286861195 and 286861204.

It is not a weakly prime, because it can be changed into another prime (286861231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143430620 + 143430621.

It is an arithmetic number, because the mean of its divisors is an integer number (143430621).

Almost surely, 2^286861241 is an apocalyptic number.

It is an amenable number.

286861241 is a deficient number, since it is larger than the sum of its proper divisors (1).

286861241 is an equidigital number, since it uses as much as digits as its factorization.

286861241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 38.

The square root of 286861241 is about 16936.9785085770. The cubic root of 286861241 is about 659.5139066936.

The spelling of 286861241 in words is "two hundred eighty-six million, eight hundred sixty-one thousand, two hundred forty-one".