381486071 has 2 divisors, whose sum is σ = 381486072. Its totient is φ = 381486070.

The previous prime is 381486037. The next prime is 381486089. The reversal of 381486071 is 170684183.

It is a strong prime.

It is an emirp because it is prime and its reverse (170684183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381486071 - 2¹⁴ = 381469687 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381486871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190743035 + 190743036.

It is an arithmetic number, because the mean of its divisors is an integer number (190743036).

Almost surely, 2^381486071 is an apocalyptic number.

381486071 is a deficient number, since it is larger than the sum of its proper divisors (1).

381486071 is an equidigital number, since it uses as much as digits as its factorization.

381486071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 381486071 is about 19531.6684131182. The cubic root of 381486071 is about 725.2586130905.

The spelling of 381486071 in words is "three hundred eighty-one million, four hundred eighty-six thousand, seventy-one".