2871138132 has 36 divisors (see below), whose sum is σ = 7274399860. Its totient is φ = 954830592.

The previous prime is 2871138121. The next prime is 2871138163. The reversal of 2871138132 is 2318311782.

It can be written as a sum of positive squares in 2 ways, for example, as 966339396 + 1904798736 = 31086^2 + 43644^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76507 + ... + 107682.

Almost surely, 2^2871138132 is an apocalyptic number.

It is an amenable number.

2871138132 is an abundant number, since it is smaller than the sum of its proper divisors (4403261728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2871138132 is a wasteful number, since it uses less digits than its factorization.

2871138132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184632 (or 184627 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 2871138132 is about 53583.0022675102. The cubic root of 2871138132 is about 1421.2965299219.

The spelling of 2871138132 in words is "two billion, eight hundred seventy-one million, one hundred thirty-eight thousand, one hundred thirty-two".