8000000149 has 2 divisors, whose sum is σ = 8000000150. Its totient is φ = 8000000148.

The previous prime is 8000000111. The next prime is 8000000209. The reversal of 8000000149 is 9410000008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4616251249 + 3383748900 = 67943^2 + 58170^2 .

It is a cyclic number.

It is not a de Polignac number, because 8000000149 - 2¹¹ = 7999998101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8000003149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4000000074 + 4000000075.

It is an arithmetic number, because the mean of its divisors is an integer number (4000000075).

Almost surely, 2^8000000149 is an apocalyptic number.

It is an amenable number.

8000000149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8000000149 is an equidigital number, since it uses as much as digits as its factorization.

8000000149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 8000000149 is about 89442.7199329269. The cubic root of 8000000149 is about 2000.0000124167. Note that the first 4 decimals are identical.

The spelling of 8000000149 in words is "eight billion, one hundred forty-nine", and thus it is an aban number.