385243559 has 2 divisors, whose sum is σ = 385243560. Its totient is φ = 385243558.

The previous prime is 385243553. The next prime is 385243571. The reversal of 385243559 is 955342583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385243559 - 2¹⁶ = 385178023 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 (385243553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192621779 + 192621780.

It is an arithmetic number, because the mean of its divisors is an integer number (192621780).

Almost surely, 2^385243559 is an apocalyptic number.

385243559 is a deficient number, since it is larger than the sum of its proper divisors (1).

385243559 is an equidigital number, since it uses as much as digits as its factorization.

385243559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 44.

The square root of 385243559 is about 19627.6223470903. The cubic root of 385243559 is about 727.6320085748.

The spelling of 385243559 in words is "three hundred eighty-five million, two hundred forty-three thousand, five hundred fifty-nine".