305214113 has 2 divisors, whose sum is σ = 305214114. Its totient is φ = 305214112.

The previous prime is 305214109. The next prime is 305214131. The reversal of 305214113 is 311412503.

Together with next prime (305214131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277155904 + 28058209 = 16648^2 + 5297^2 .

It is a cyclic number.

It is not a de Polignac number, because 305214113 - 2² = 305214109 is a prime.

It is not a weakly prime, because it can be changed into another prime (305294113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152607056 + 152607057.

It is an arithmetic number, because the mean of its divisors is an integer number (152607057).

Almost surely, 2^305214113 is an apocalyptic number.

It is an amenable number.

305214113 is a deficient number, since it is larger than the sum of its proper divisors (1).

305214113 is an equidigital number, since it uses as much as digits as its factorization.

305214113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 305214113 is about 17470.3781584716. The cubic root of 305214113 is about 673.2890278715.

Adding to 305214113 its reverse (311412503), we get a palindrome (616626616).

The spelling of 305214113 in words is "three hundred five million, two hundred fourteen thousand, one hundred thirteen".