2871312029 has 4 divisors (see below), whose sum is σ = 2918382780. Its totient is φ = 2824241280.

The previous prime is 2871312013. The next prime is 2871312061. The reversal of 2871312029 is 9202131782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9202131782 = 2 ⋅4601065891.

It can be written as a sum of positive squares in 2 ways, for example, as 154504900 + 2716807129 = 12430^2 + 52123^2 .

It is a cyclic number.

It is not a de Polignac number, because 2871312029 - 2⁴ = 2871312013 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 2871312029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871312079) 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, 23535284 + ... + 23535405.

It is an arithmetic number, because the mean of its divisors is an integer number (729595695).

Almost surely, 2^2871312029 is an apocalyptic number.

It is an amenable number.

2871312029 is a deficient number, since it is larger than the sum of its proper divisors (47070751).

2871312029 is an equidigital number, since it uses as much as digits as its factorization.

2871312029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47070750.

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

The square root of 2871312029 is about 53584.6249310378. The cubic root of 2871312029 is about 1421.3252240265.

The spelling of 2871312029 in words is "two billion, eight hundred seventy-one million, three hundred twelve thousand, twenty-nine".