189030763 has 2 divisors, whose sum is σ = 189030764. Its totient is φ = 189030762.

The previous prime is 189030739. The next prime is 189030811. The reversal of 189030763 is 367030981.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189030763 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (189030703) 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, 94515381 + 94515382.

It is an arithmetic number, because the mean of its divisors is an integer number (94515382).

Almost surely, 2^189030763 is an apocalyptic number.

189030763 is a deficient number, since it is larger than the sum of its proper divisors (1).

189030763 is an equidigital number, since it uses as much as digits as its factorization.

189030763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 189030763 is about 13748.8458788365. The cubic root of 189030763 is about 573.9104893870.

The spelling of 189030763 in words is "one hundred eighty-nine million, thirty thousand, seven hundred sixty-three".