381033071 has 2 divisors, whose sum is σ = 381033072. Its totient is φ = 381033070.

The previous prime is 381033047. The next prime is 381033097. The reversal of 381033071 is 170330183.

It is an a-pointer prime, because the next prime (381033097) can be obtained adding 381033071 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381033071 - 2¹⁴ = 381016687 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 381033071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381033041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190516535 + 190516536.

It is an arithmetic number, because the mean of its divisors is an integer number (190516536).

Almost surely, 2^381033071 is an apocalyptic number.

381033071 is a deficient number, since it is larger than the sum of its proper divisors (1).

381033071 is an equidigital number, since it uses as much as digits as its factorization.

381033071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 381033071 is about 19520.0684168883. The cubic root of 381033071 is about 724.9714271736.

The spelling of 381033071 in words is "three hundred eighty-one million, thirty-three thousand, seventy-one".