284071139 has 8 divisors (see below), whose sum is σ = 328125168. Its totient is φ = 243055360.

The previous prime is 284071133. The next prime is 284071157. The reversal of 284071139 is 931170482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 284071139 - 2²⁰ = 283022563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 284071099 and 284071108.

It is not an unprimeable number, because it can be changed into a prime (284071133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759362 + ... + 759735.

It is an arithmetic number, because the mean of its divisors is an integer number (41015646).

Almost surely, 2^284071139 is an apocalyptic number.

284071139 is a deficient number, since it is larger than the sum of its proper divisors (44054029).

284071139 is a wasteful number, since it uses less digits than its factorization.

284071139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519125.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 284071139 is about 16854.4100757042. The cubic root of 284071139 is about 657.3687239539.

The spelling of 284071139 in words is "two hundred eighty-four million, seventy-one thousand, one hundred thirty-nine".