381071043 has 6 divisors (see below), whose sum is σ = 550435964. Its totient is φ = 254047356.

The previous prime is 381071027. The next prime is 381071051. The reversal of 381071043 is 340170183.

It is not a de Polignac number, because 381071043 - 2⁴ = 381071027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381070998 and 381071016.

It is not an unprimeable number, because it can be changed into a prime (381070043) 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 in 5 ways as a sum of consecutive naturals, for example, 21170605 + ... + 21170622.

Almost surely, 2^381071043 is an apocalyptic number.

381071043 is a deficient number, since it is larger than the sum of its proper divisors (169364921).

381071043 is a wasteful number, since it uses less digits than its factorization.

381071043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42341233 (or 42341230 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 381071043 is about 19521.0410326909. The cubic root of 381071043 is about 724.9955088109.

The spelling of 381071043 in words is "three hundred eighty-one million, seventy-one thousand, forty-three".