385188163 has 2 divisors, whose sum is σ = 385188164. Its totient is φ = 385188162.

The previous prime is 385188161. The next prime is 385188191. The reversal of 385188163 is 361881583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385188163 - 2¹ = 385188161 is a prime.

Together with 385188161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (385188161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192594081 + 192594082.

It is an arithmetic number, because the mean of its divisors is an integer number (192594082).

Almost surely, 2^385188163 is an apocalyptic number.

385188163 is a deficient number, since it is larger than the sum of its proper divisors (1).

385188163 is an equidigital number, since it uses as much as digits as its factorization.

385188163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 43.

The square root of 385188163 is about 19626.2111218646. The cubic root of 385188163 is about 727.5971303496.

The spelling of 385188163 in words is "three hundred eighty-five million, one hundred eighty-eight thousand, one hundred sixty-three".