306021120149 has 2 divisors, whose sum is σ = 306021120150. Its totient is φ = 306021120148.

The previous prime is 306021120133. The next prime is 306021120203. The reversal of 306021120149 is 941021120603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227653036900 + 78368083249 = 477130^2 + 279943^2 .

It is an emirp because it is prime and its reverse (941021120603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 306021120149 - 2⁴ = 306021120133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306021180149) 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, 153010560074 + 153010560075.

It is an arithmetic number, because the mean of its divisors is an integer number (153010560075).

Almost surely, 2^306021120149 is an apocalyptic number.

It is an amenable number.

306021120149 is a deficient number, since it is larger than the sum of its proper divisors (1).

306021120149 is an equidigital number, since it uses as much as digits as its factorization.

306021120149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 306021120149 in words is "three hundred six billion, twenty-one million, one hundred twenty thousand, one hundred forty-nine".