30932189 has 2 divisors, whose sum is σ = 30932190. Its totient is φ = 30932188.

The previous prime is 30932177. The next prime is 30932201. The reversal of 30932189 is 98123903.

It is a balanced prime because it is at equal distance from previous prime (30932177) and next prime (30932201).

It can be written as a sum of positive squares in only one way, i.e., 27984100 + 2948089 = 5290^2 + 1717^2 .

It is a cyclic number.

It is not a de Polignac number, because 30932189 - 2⁴ = 30932173 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 (30932149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15466094 + 15466095.

It is an arithmetic number, because the mean of its divisors is an integer number (15466095).

Almost surely, 2^30932189 is an apocalyptic number.

It is an amenable number.

30932189 is a deficient number, since it is larger than the sum of its proper divisors (1).

30932189 is an equidigital number, since it uses as much as digits as its factorization.

30932189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 30932189 is about 5561.6714214344. The cubic root of 30932189 is about 313.9088440819.

The spelling of 30932189 in words is "thirty million, nine hundred thirty-two thousand, one hundred eighty-nine".