30298109 has 2 divisors, whose sum is σ = 30298110. Its totient is φ = 30298108.

The previous prime is 30298091. The next prime is 30298117. The reversal of 30298109 is 90189203.

Together with previous prime (30298091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23522500 + 6775609 = 4850^2 + 2603^2 .

It is a cyclic number.

It is not a de Polignac number, because 30298109 - 2²⁴ = 13520893 is a prime.

It is a Sophie Germain prime.

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 (30298189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15149054 + 15149055.

It is an arithmetic number, because the mean of its divisors is an integer number (15149055).

Almost surely, 2^30298109 is an apocalyptic number.

It is an amenable number.

30298109 is a deficient number, since it is larger than the sum of its proper divisors (1).

30298109 is an equidigital number, since it uses as much as digits as its factorization.

30298109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 30298109 is about 5504.3718079359. The cubic root of 30298109 is about 311.7490757261.

The spelling of 30298109 in words is "thirty million, two hundred ninety-eight thousand, one hundred nine".