30385609 has 2 divisors, whose sum is σ = 30385610. Its totient is φ = 30385608.

The previous prime is 30385601. The next prime is 30385627. The reversal of 30385609 is 90658303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25857225 + 4528384 = 5085^2 + 2128^2 .

It is a cyclic number.

It is not a de Polignac number, because 30385609 - 2³ = 30385601 is a prime.

It is not a weakly prime, because it can be changed into another prime (30385601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15192804 + 15192805.

It is an arithmetic number, because the mean of its divisors is an integer number (15192805).

Almost surely, 2^30385609 is an apocalyptic number.

It is an amenable number.

30385609 is a deficient number, since it is larger than the sum of its proper divisors (1).

30385609 is an equidigital number, since it uses as much as digits as its factorization.

30385609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 30385609 is about 5512.3143052624. The cubic root of 30385609 is about 312.0488945123.

The spelling of 30385609 in words is "thirty million, three hundred eighty-five thousand, six hundred nine".