381173063 has 2 divisors, whose sum is σ = 381173064. Its totient is φ = 381173062.

The previous prime is 381173057. The next prime is 381173083. The reversal of 381173063 is 360371183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381173063 - 2⁶ = 381172999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381173083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190586531 + 190586532.

It is an arithmetic number, because the mean of its divisors is an integer number (190586532).

Almost surely, 2^381173063 is an apocalyptic number.

381173063 is a deficient number, since it is larger than the sum of its proper divisors (1).

381173063 is an equidigital number, since it uses as much as digits as its factorization.

381173063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 381173063 is about 19523.6539356751. The cubic root of 381173063 is about 725.0602014219.

The spelling of 381173063 in words is "three hundred eighty-one million, one hundred seventy-three thousand, sixty-three".