150194189 has 2 divisors, whose sum is σ = 150194190. Its totient is φ = 150194188.

The previous prime is 150194173. The next prime is 150194203. The reversal of 150194189 is 981491051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97515625 + 52678564 = 9875^2 + 7258^2 .

It is a cyclic number.

It is not a de Polignac number, because 150194189 - 2⁴ = 150194173 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150194129) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75097094 + 75097095.

It is an arithmetic number, because the mean of its divisors is an integer number (75097095).

Almost surely, 2^150194189 is an apocalyptic number.

It is an amenable number.

150194189 is a deficient number, since it is larger than the sum of its proper divisors (1).

150194189 is an equidigital number, since it uses as much as digits as its factorization.

150194189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 150194189 is about 12255.3738825056. The cubic root of 150194189 is about 531.5584708353.

The spelling of 150194189 in words is "one hundred fifty million, one hundred ninety-four thousand, one hundred eighty-nine".