306130389 has 4 divisors (see below), whose sum is σ = 408173856. Its totient is φ = 204086924.

The previous prime is 306130379. The next prime is 306130397. The reversal of 306130389 is 983031603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 983031603 = 3 ⋅327677201.

It is a cyclic number.

It is not a de Polignac number, because 306130389 - 2²⁴ = 289353173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306130369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51021729 + ... + 51021734.

It is an arithmetic number, because the mean of its divisors is an integer number (102043464).

Almost surely, 2^306130389 is an apocalyptic number.

It is an amenable number.

306130389 is a deficient number, since it is larger than the sum of its proper divisors (102043467).

306130389 is a wasteful number, since it uses less digits than its factorization.

306130389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102043466.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 306130389 is about 17496.5822091059. The cubic root of 306130389 is about 673.9621097432.

The spelling of 306130389 in words is "three hundred six million, one hundred thirty thousand, three hundred eighty-nine".