306145207 has 2 divisors, whose sum is σ = 306145208. Its totient is φ = 306145206.

The previous prime is 306145171. The next prime is 306145219. The reversal of 306145207 is 702541603.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 306145207 - 2²⁷ = 171927479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306145247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153072603 + 153072604.

It is an arithmetic number, because the mean of its divisors is an integer number (153072604).

Almost surely, 2^306145207 is an apocalyptic number.

306145207 is a deficient number, since it is larger than the sum of its proper divisors (1).

306145207 is an equidigital number, since it uses as much as digits as its factorization.

306145207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 306145207 is about 17497.0056581119. The cubic root of 306145207 is about 673.9729837692.

The spelling of 306145207 in words is "three hundred six million, one hundred forty-five thousand, two hundred seven".