8119009 has 2 divisors, whose sum is σ = 8119010. Its totient is φ = 8119008.

The previous prime is 8118991. The next prime is 8119037. The reversal of 8119009 is 9009118.

It is an a-pointer prime, because the next prime (8119037) can be obtained adding 8119009 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7980625 + 138384 = 2825^2 + 372^2 .

It is a cyclic number.

It is not a de Polignac number, because 8119009 - 2¹¹ = 8116961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8119079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4059504 + 4059505.

It is an arithmetic number, because the mean of its divisors is an integer number (4059505).

Almost surely, 2^8119009 is an apocalyptic number.

It is an amenable number.

8119009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8119009 is an equidigital number, since it uses as much as digits as its factorization.

8119009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 8119009 is about 2849.3874780380. The cubic root of 8119009 is about 200.9868641532.

The spelling of 8119009 in words is "eight million, one hundred nineteen thousand, nine".