30164789 has 2 divisors, whose sum is σ = 30164790. Its totient is φ = 30164788.

The previous prime is 30164759. The next prime is 30164803. The reversal of 30164789 is 98746103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28976689 + 1188100 = 5383^2 + 1090^2 .

It is a cyclic number.

It is not a de Polignac number, because 30164789 - 2¹² = 30160693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30164759) 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, 15082394 + 15082395.

It is an arithmetic number, because the mean of its divisors is an integer number (15082395).

Almost surely, 2^30164789 is an apocalyptic number.

It is an amenable number.

30164789 is a deficient number, since it is larger than the sum of its proper divisors (1).

30164789 is an equidigital number, since it uses as much as digits as its factorization.

30164789 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 30164789 is about 5492.2480825250. The cubic root of 30164789 is about 311.2911428761.

The spelling of 30164789 in words is "thirty million, one hundred sixty-four thousand, seven hundred eighty-nine".