381066463 has 2 divisors, whose sum is σ = 381066464. Its totient is φ = 381066462.

The previous prime is 381066391. The next prime is 381066523. The reversal of 381066463 is 364660183.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381066463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381066163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190533231 + 190533232.

It is an arithmetic number, because the mean of its divisors is an integer number (190533232).

Almost surely, 2^381066463 is an apocalyptic number.

381066463 is a deficient number, since it is larger than the sum of its proper divisors (1).

381066463 is an equidigital number, since it uses as much as digits as its factorization.

381066463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 381066463 is about 19520.9237230209. The cubic root of 381066463 is about 724.9926042844.

The spelling of 381066463 in words is "three hundred eighty-one million, sixty-six thousand, four hundred sixty-three".