285885163 has 2 divisors, whose sum is σ = 285885164. Its totient is φ = 285885162.

The previous prime is 285885133. The next prime is 285885179. The reversal of 285885163 is 361588582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285885163 - 2¹³ = 285876971 is a prime.

It is not a weakly prime, because it can be changed into another prime (285885133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142942581 + 142942582.

It is an arithmetic number, because the mean of its divisors is an integer number (142942582).

Almost surely, 2^285885163 is an apocalyptic number.

285885163 is a deficient number, since it is larger than the sum of its proper divisors (1).

285885163 is an equidigital number, since it uses as much as digits as its factorization.

285885163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800, while the sum is 46.

The square root of 285885163 is about 16908.1389573188. The cubic root of 285885163 is about 658.7650329808.

The spelling of 285885163 in words is "two hundred eighty-five million, eight hundred eighty-five thousand, one hundred sixty-three".