30746189 has 2 divisors, whose sum is σ = 30746190. Its totient is φ = 30746188.

The previous prime is 30746153. The next prime is 30746267. The reversal of 30746189 is 98164703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26604964 + 4141225 = 5158^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 30746189 - 2¹² = 30742093 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 (30746689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15373094 + 15373095.

It is an arithmetic number, because the mean of its divisors is an integer number (15373095).

Almost surely, 2^30746189 is an apocalyptic number.

It is an amenable number.

30746189 is a deficient number, since it is larger than the sum of its proper divisors (1).

30746189 is an equidigital number, since it uses as much as digits as its factorization.

30746189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 30746189 is about 5544.9246162594. The cubic root of 30746189 is about 313.2783846855.

The spelling of 30746189 in words is "thirty million, seven hundred forty-six thousand, one hundred eighty-nine".