285745211 has 2 divisors, whose sum is σ = 285745212. Its totient is φ = 285745210.

The previous prime is 285745157. The next prime is 285745217. The reversal of 285745211 is 112547582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285745211 - 2¹⁴ = 285728827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (285745217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142872605 + 142872606.

It is an arithmetic number, because the mean of its divisors is an integer number (142872606).

Almost surely, 2^285745211 is an apocalyptic number.

285745211 is a deficient number, since it is larger than the sum of its proper divisors (1).

285745211 is an equidigital number, since it uses as much as digits as its factorization.

285745211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 35.

The square root of 285745211 is about 16903.9998521060. Note that the first 3 decimals coincide. The cubic root of 285745211 is about 658.6575183276.

The spelling of 285745211 in words is "two hundred eighty-five million, seven hundred forty-five thousand, two hundred eleven".