30298189 has 2 divisors, whose sum is σ = 30298190. Its totient is φ = 30298188.

The previous prime is 30298157. The next prime is 30298201. The reversal of 30298189 is 98189203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19624900 + 10673289 = 4430^2 + 3267^2 .

It is a cyclic number.

It is not a de Polignac number, because 30298189 - 2⁵ = 30298157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30298109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15149094 + 15149095.

It is an arithmetic number, because the mean of its divisors is an integer number (15149095).

Almost surely, 2^30298189 is an apocalyptic number.

It is an amenable number.

30298189 is a deficient number, since it is larger than the sum of its proper divisors (1).

30298189 is an equidigital number, since it uses as much as digits as its factorization.

30298189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 30298189 is about 5504.3790748821. The cubic root of 30298189 is about 311.7493501096.

The spelling of 30298189 in words is "thirty million, two hundred ninety-eight thousand, one hundred eighty-nine".