2871285133 has 4 divisors (see below), whose sum is σ = 2882724768. Its totient is φ = 2859845500.

The previous prime is 2871285119. The next prime is 2871285143. The reversal of 2871285133 is 3315821782.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2871285133 - 2⁵ = 2871285101 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871285143) 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, 5719441 + ... + 5719942.

It is an arithmetic number, because the mean of its divisors is an integer number (720681192).

Almost surely, 2^2871285133 is an apocalyptic number.

It is an amenable number.

2871285133 is a deficient number, since it is larger than the sum of its proper divisors (11439635).

2871285133 is a wasteful number, since it uses less digits than its factorization.

2871285133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11439634.

The product of its digits is 80640, while the sum is 40.

The square root of 2871285133 is about 53584.3739629381. The cubic root of 2871285133 is about 1421.3207860921.

The spelling of 2871285133 in words is "two billion, eight hundred seventy-one million, two hundred eighty-five thousand, one hundred thirty-three".