1830385163 has 2 divisors, whose sum is σ = 1830385164. Its totient is φ = 1830385162.

The previous prime is 1830385129. The next prime is 1830385201. The reversal of 1830385163 is 3615830381.

It is an a-pointer prime, because the next prime (1830385201) can be obtained adding 1830385163 to its sum of digits (38).

It is a weak prime.

It is an emirp because it is prime and its reverse (3615830381) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1830385163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1830385363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915192581 + 915192582.

It is an arithmetic number, because the mean of its divisors is an integer number (915192582).

Almost surely, 2^1830385163 is an apocalyptic number.

1830385163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1830385163 is an equidigital number, since it uses as much as digits as its factorization.

1830385163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1830385163 is about 42783.0008648295. Note that the first 3 decimals coincide. The cubic root of 1830385163 is about 1223.2470082321.

The spelling of 1830385163 in words is "one billion, eight hundred thirty million, three hundred eighty-five thousand, one hundred sixty-three".