282080009 has 2 divisors, whose sum is σ = 282080010. Its totient is φ = 282080008.

The previous prime is 282079999. The next prime is 282080011. The reversal of 282080009 is 900080282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234855625 + 47224384 = 15325^2 + 6872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-282080009 is a prime.

Together with 282080011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (282080509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141040004 + 141040005.

It is an arithmetic number, because the mean of its divisors is an integer number (141040005).

Almost surely, 2^282080009 is an apocalyptic number.

It is an amenable number.

282080009 is a deficient number, since it is larger than the sum of its proper divisors (1).

282080009 is an equidigital number, since it uses as much as digits as its factorization.

282080009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 282080009 is about 16795.2376881067. The cubic root of 282080009 is about 655.8292308134.

The spelling of 282080009 in words is "two hundred eighty-two million, eighty thousand, nine".