381071 has 2 divisors, whose sum is σ = 381072. Its totient is φ = 381070.

The previous prime is 381061. The next prime is 381077. The reversal of 381071 is 170183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381071 - 2¹⁰ = 380047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190535 + 190536.

It is an arithmetic number, because the mean of its divisors is an integer number (190536).

2³⁸¹⁰⁷¹ is an apocalyptic number.

381071 is a deficient number, since it is larger than the sum of its proper divisors (1).

381071 is an equidigital number, since it uses as much as digits as its factorization.

381071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 381071 is about 617.3094847805. The cubic root of 381071 is about 72.4995481541.

The spelling of 381071 in words is "three hundred eighty-one thousand, seventy-one".