306164225 has 6 divisors (see below), whose sum is σ = 379643670. Its totient is φ = 244931360.

The previous prime is 306164219. The next prime is 306164227. The reversal of 306164225 is 522461603.

It can be written as a sum of positive squares in 3 ways, for example, as 3682561 + 302481664 = 1919^2 + 17392^2 .

It is not a de Polignac number, because 306164225 - 2¹⁰ = 306163201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (306164227) 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 in 5 ways as a sum of consecutive naturals, for example, 6123260 + ... + 6123309.

It is an arithmetic number, because the mean of its divisors is an integer number (63273945).

Almost surely, 2^306164225 is an apocalyptic number.

It is an amenable number.

306164225 is a deficient number, since it is larger than the sum of its proper divisors (73479445).

306164225 is a wasteful number, since it uses less digits than its factorization.

306164225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12246579 (or 12246574 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 306164225 is about 17497.5491140902. The cubic root of 306164225 is about 673.9869394047.

The spelling of 306164225 in words is "three hundred six million, one hundred sixty-four thousand, two hundred twenty-five".