285605334241 has 4 divisors (see below), whose sum is σ = 285738734484. Its totient is φ = 285471934000.

The previous prime is 285605334197. The next prime is 285605334263. The reversal of 285605334241 is 142433506582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174386419216 + 111218915025 = 417596^2 + 333495^2 .

It is a cyclic number.

It is not a de Polignac number, because 285605334241 - 2¹⁵ = 285605301473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285605334841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66696910 + ... + 66701191.

It is an arithmetic number, because the mean of its divisors is an integer number (71434683621).

Almost surely, 2^285605334241 is an apocalyptic number.

It is an amenable number.

285605334241 is a deficient number, since it is larger than the sum of its proper divisors (133400243).

285605334241 is a wasteful number, since it uses less digits than its factorization.

285605334241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133400242.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 285605334241 in words is "two hundred eighty-five billion, six hundred five million, three hundred thirty-four thousand, two hundred forty-one".