282068309 has 2 divisors, whose sum is σ = 282068310. Its totient is φ = 282068308.

The previous prime is 282068257. The next prime is 282068317. The reversal of 282068309 is 903860282.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186459025 + 95609284 = 13655^2 + 9778^2 .

It is a cyclic number.

It is not a de Polignac number, because 282068309 - 2²⁴ = 265291093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (282068359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141034154 + 141034155.

It is an arithmetic number, because the mean of its divisors is an integer number (141034155).

Almost surely, 2^282068309 is an apocalyptic number.

It is an amenable number.

282068309 is a deficient number, since it is larger than the sum of its proper divisors (1).

282068309 is an equidigital number, since it uses as much as digits as its factorization.

282068309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 282068309 is about 16794.8893714725. The cubic root of 282068309 is about 655.8201632819.

The spelling of 282068309 in words is "two hundred eighty-two million, sixty-eight thousand, three hundred nine".