150006809 has 2 divisors, whose sum is σ = 150006810. Its totient is φ = 150006808.

The previous prime is 150006761. The next prime is 150006811. The reversal of 150006809 is 908600051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131171209 + 18835600 = 11453^2 + 4340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150006809 is a prime.

It is a Sophie Germain prime.

Together with 150006811, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (150006889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75003404 + 75003405.

It is an arithmetic number, because the mean of its divisors is an integer number (75003405).

Almost surely, 2^150006809 is an apocalyptic number.

It is an amenable number.

150006809 is a deficient number, since it is larger than the sum of its proper divisors (1).

150006809 is an equidigital number, since it uses as much as digits as its factorization.

150006809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 150006809 is about 12247.7266870224. The cubic root of 150006809 is about 531.3373240721.

The spelling of 150006809 in words is "one hundred fifty million, six thousand, eight hundred nine".