150242789 has 2 divisors, whose sum is σ = 150242790. Its totient is φ = 150242788.

The previous prime is 150242779. The next prime is 150242791. The reversal of 150242789 is 987242051.

150242789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134954689 + 15288100 = 11617^2 + 3910^2 .

It is an emirp because it is prime and its reverse (987242051) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150242789 is a prime.

It is a Sophie Germain prime.

Together with 150242791, it forms a pair of twin primes.

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 (150242749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75121394 + 75121395.

It is an arithmetic number, because the mean of its divisors is an integer number (75121395).

Almost surely, 2^150242789 is an apocalyptic number.

It is an amenable number.

150242789 is a deficient number, since it is larger than the sum of its proper divisors (1).

150242789 is an equidigital number, since it uses as much as digits as its factorization.

150242789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 150242789 is about 12257.3565257767. The cubic root of 150242789 is about 531.6157987428.

The spelling of 150242789 in words is "one hundred fifty million, two hundred forty-two thousand, seven hundred eighty-nine".