30465509 has 2 divisors, whose sum is σ = 30465510. Its totient is φ = 30465508.

The previous prime is 30465451. The next prime is 30465511. The reversal of 30465509 is 90556403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27857284 + 2608225 = 5278^2 + 1615^2 .

It is a cyclic number.

It is not a de Polignac number, because 30465509 - 2¹⁶ = 30399973 is a prime.

It is a Sophie Germain prime.

Together with 30465511, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30465599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15232754 + 15232755.

It is an arithmetic number, because the mean of its divisors is an integer number (15232755).

Almost surely, 2^30465509 is an apocalyptic number.

It is an amenable number.

30465509 is a deficient number, since it is larger than the sum of its proper divisors (1).

30465509 is an equidigital number, since it uses as much as digits as its factorization.

30465509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 30465509 is about 5519.5569568580. The cubic root of 30465509 is about 312.3221695434.

The spelling of 30465509 in words is "thirty million, four hundred sixty-five thousand, five hundred nine".