285271241 has 2 divisors, whose sum is σ = 285271242. Its totient is φ = 285271240.

The previous prime is 285271223. The next prime is 285271253. The reversal of 285271241 is 142172582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274896400 + 10374841 = 16580^2 + 3221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285271241 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 285271198 and 285271207.

It is not a weakly prime, because it can be changed into another prime (285271211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142635620 + 142635621.

It is an arithmetic number, because the mean of its divisors is an integer number (142635621).

Almost surely, 2^285271241 is an apocalyptic number.

It is an amenable number.

285271241 is a deficient number, since it is larger than the sum of its proper divisors (1).

285271241 is an equidigital number, since it uses as much as digits as its factorization.

285271241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 32.

The square root of 285271241 is about 16889.9745707328. The cubic root of 285271241 is about 658.2931416507.

The spelling of 285271241 in words is "two hundred eighty-five million, two hundred seventy-one thousand, two hundred forty-one".