301420309 has 2 divisors, whose sum is σ = 301420310. Its totient is φ = 301420308.

The previous prime is 301420303. The next prime is 301420331. The reversal of 301420309 is 903024103.

It is an a-pointer prime, because the next prime (301420331) can be obtained adding 301420309 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186459025 + 114961284 = 13655^2 + 10722^2 .

It is a cyclic number.

It is not a de Polignac number, because 301420309 - 2¹⁷ = 301289237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 301420309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (301420303) 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, 150710154 + 150710155.

It is an arithmetic number, because the mean of its divisors is an integer number (150710155).

Almost surely, 2^301420309 is an apocalyptic number.

It is an amenable number.

301420309 is a deficient number, since it is larger than the sum of its proper divisors (1).

301420309 is an equidigital number, since it uses as much as digits as its factorization.

301420309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 301420309 is about 17361.4604512408. The cubic root of 301420309 is about 670.4877335243.

The spelling of 301420309 in words is "three hundred one million, four hundred twenty thousand, three hundred nine".