381016271 has 4 divisors (see below), whose sum is σ = 381062232. Its totient is φ = 380970312.

The previous prime is 381016247. The next prime is 381016283. The reversal of 381016271 is 172610183.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 381016271 - 2¹⁴ = 380999887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381016241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6701 + ... + 28406.

It is an arithmetic number, because the mean of its divisors is an integer number (95265558).

Almost surely, 2^381016271 is an apocalyptic number.

381016271 is a deficient number, since it is larger than the sum of its proper divisors (45961).

381016271 is a wasteful number, since it uses less digits than its factorization.

381016271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45960.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 381016271 is about 19519.6380857843. The cubic root of 381016271 is about 724.9607721938.

The spelling of 381016271 in words is "three hundred eighty-one million, sixteen thousand, two hundred seventy-one".