285052247 has 2 divisors, whose sum is σ = 285052248. Its totient is φ = 285052246.

The previous prime is 285052241. The next prime is 285052267. The reversal of 285052247 is 742250582.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285052247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285052241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142526123 + 142526124.

It is an arithmetic number, because the mean of its divisors is an integer number (142526124).

Almost surely, 2^285052247 is an apocalyptic number.

285052247 is a deficient number, since it is larger than the sum of its proper divisors (1).

285052247 is an equidigital number, since it uses as much as digits as its factorization.

285052247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 285052247 is about 16883.4903678120. The cubic root of 285052247 is about 658.1246480291.

The spelling of 285052247 in words is "two hundred eighty-five million, fifty-two thousand, two hundred forty-seven".