30290509 has 2 divisors, whose sum is σ = 30290510. Its totient is φ = 30290508.

The previous prime is 30290501. The next prime is 30290521. The reversal of 30290509 is 90509203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15444900 + 14845609 = 3930^2 + 3853^2 .

It is a cyclic number.

It is not a de Polignac number, because 30290509 - 2³ = 30290501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30290501) 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, 15145254 + 15145255.

It is an arithmetic number, because the mean of its divisors is an integer number (15145255).

Almost surely, 2^30290509 is an apocalyptic number.

It is an amenable number.

30290509 is a deficient number, since it is larger than the sum of its proper divisors (1).

30290509 is an equidigital number, since it uses as much as digits as its factorization.

30290509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 30290509 is about 5503.6814042966. The cubic root of 30290509 is about 311.7230070903.

The spelling of 30290509 in words is "thirty million, two hundred ninety thousand, five hundred nine".