306428201 has 2 divisors, whose sum is σ = 306428202. Its totient is φ = 306428200.

The previous prime is 306428197. The next prime is 306428207. The reversal of 306428201 is 102824603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214651801 + 91776400 = 14651^2 + 9580^2 .

It is a cyclic number.

It is not a de Polignac number, because 306428201 - 2² = 306428197 is a prime.

It is not a weakly prime, because it can be changed into another prime (306428207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153214100 + 153214101.

It is an arithmetic number, because the mean of its divisors is an integer number (153214101).

Almost surely, 2^306428201 is an apocalyptic number.

It is an amenable number.

306428201 is a deficient number, since it is larger than the sum of its proper divisors (1).

306428201 is an equidigital number, since it uses as much as digits as its factorization.

306428201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 306428201 is about 17505.0907167030. The cubic root of 306428201 is about 674.1805884912.

The spelling of 306428201 in words is "three hundred six million, four hundred twenty-eight thousand, two hundred one".