381486163 has 2 divisors, whose sum is σ = 381486164. Its totient is φ = 381486162.

The previous prime is 381486151. The next prime is 381486167. The reversal of 381486163 is 361684183.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381486163 is a prime.

It is not a weakly prime, because it can be changed into another prime (381486167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190743081 + 190743082.

It is an arithmetic number, because the mean of its divisors is an integer number (190743082).

Almost surely, 2^381486163 is an apocalyptic number.

381486163 is a deficient number, since it is larger than the sum of its proper divisors (1).

381486163 is an equidigital number, since it uses as much as digits as its factorization.

381486163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 381486163 is about 19531.6707682676. The cubic root of 381486163 is about 725.2586713922.

The spelling of 381486163 in words is "three hundred eighty-one million, four hundred eighty-six thousand, one hundred sixty-three".