382855139 has 4 divisors (see below), whose sum is σ = 382903056. Its totient is φ = 382807224.

The previous prime is 382855117. The next prime is 382855141. The reversal of 382855139 is 931558283.

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 382855139 - 2¹² = 382851043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 382855139.

It is not an unprimeable number, because it can be changed into a prime (382855159) 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, 8759 + ... + 29024.

It is an arithmetic number, because the mean of its divisors is an integer number (95725764).

Almost surely, 2^382855139 is an apocalyptic number.

382855139 is a deficient number, since it is larger than the sum of its proper divisors (47917).

382855139 is a wasteful number, since it uses less digits than its factorization.

382855139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47916.

The product of its digits is 259200, while the sum is 44.

The square root of 382855139 is about 19566.6844150970. The cubic root of 382855139 is about 726.1251741507.

The spelling of 382855139 in words is "three hundred eighty-two million, eight hundred fifty-five thousand, one hundred thirty-nine".