306636013 has 2 divisors, whose sum is σ = 306636014. Its totient is φ = 306636012.

The previous prime is 306635981. The next prime is 306636049. The reversal of 306636013 is 310636603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304258249 + 2377764 = 17443^2 + 1542^2 .

It is a cyclic number.

It is not a de Polignac number, because 306636013 - 2⁵ = 306635981 is a prime.

It is equal to p_16592131 and since 306636013 and 16592131 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306636073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153318006 + 153318007.

It is an arithmetic number, because the mean of its divisors is an integer number (153318007).

Almost surely, 2^306636013 is an apocalyptic number.

It is an amenable number.

306636013 is a deficient number, since it is larger than the sum of its proper divisors (1).

306636013 is an equidigital number, since it uses as much as digits as its factorization.

306636013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 306636013 is about 17511.0254696862. The cubic root of 306636013 is about 674.3329582323.

The spelling of 306636013 in words is "three hundred six million, six hundred thirty-six thousand, thirteen".