286040549 has 2 divisors, whose sum is σ = 286040550. Its totient is φ = 286040548.

The previous prime is 286040537. The next prime is 286040551. The reversal of 286040549 is 945040682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277455649 + 8584900 = 16657^2 + 2930^2 .

It is a cyclic number.

It is not a de Polignac number, because 286040549 - 2⁴ = 286040533 is a prime.

Together with 286040551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286040509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143020274 + 143020275.

It is an arithmetic number, because the mean of its divisors is an integer number (143020275).

Almost surely, 2^286040549 is an apocalyptic number.

It is an amenable number.

286040549 is a deficient number, since it is larger than the sum of its proper divisors (1).

286040549 is an equidigital number, since it uses as much as digits as its factorization.

286040549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 286040549 is about 16912.7333391146. The cubic root of 286040549 is about 658.8843633235.

The spelling of 286040549 in words is "two hundred eighty-six million, forty thousand, five hundred forty-nine".