306315188189 has 2 divisors, whose sum is σ = 306315188190. Its totient is φ = 306315188188.

The previous prime is 306315188159. The next prime is 306315188239. The reversal of 306315188189 is 981881513603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264727743289 + 41587444900 = 514517^2 + 203930^2 .

It is a cyclic number.

It is not a de Polignac number, because 306315188189 - 2³² = 302020220893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 306315188189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306315188159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153157594094 + 153157594095.

It is an arithmetic number, because the mean of its divisors is an integer number (153157594095).

Almost surely, 2^306315188189 is an apocalyptic number.

It is an amenable number.

306315188189 is a deficient number, since it is larger than the sum of its proper divisors (1).

306315188189 is an equidigital number, since it uses as much as digits as its factorization.

306315188189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 306315188189 in words is "three hundred six billion, three hundred fifteen million, one hundred eighty-eight thousand, one hundred eighty-nine".