30242189 has 2 divisors, whose sum is σ = 30242190. Its totient is φ = 30242188.

The previous prime is 30242131. The next prime is 30242203. The reversal of 30242189 is 98124203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18966025 + 11276164 = 4355^2 + 3358^2 .

It is a cyclic number.

It is not a de Polignac number, because 30242189 - 2²⁴ = 13464973 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 (30242119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15121094 + 15121095.

It is an arithmetic number, because the mean of its divisors is an integer number (15121095).

Almost surely, 2^30242189 is an apocalyptic number.

It is an amenable number.

30242189 is a deficient number, since it is larger than the sum of its proper divisors (1).

30242189 is an equidigital number, since it uses as much as digits as its factorization.

30242189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 30242189 is about 5499.2898632460. The cubic root of 30242189 is about 311.5571633699.

The spelling of 30242189 in words is "thirty million, two hundred forty-two thousand, one hundred eighty-nine".