2871541 has 4 divisors (see below), whose sum is σ = 2876800. Its totient is φ = 2866284.

The previous prime is 2871509. The next prime is 2871563. The reversal of 2871541 is 1451782.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1451782 = 2 ⋅725891.

It is a cyclic number.

It is not a de Polignac number, because 2871541 - 2⁵ = 2871509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2875541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701 + ... + 2938.

It is an arithmetic number, because the mean of its divisors is an integer number (719200).

2^2871541 is an apocalyptic number.

It is an amenable number.

2871541 is a deficient number, since it is larger than the sum of its proper divisors (5259).

2871541 is an equidigital number, since it uses as much as digits as its factorization.

2871541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258.

The product of its digits is 2240, while the sum is 28.

The square root of 2871541 is about 1694.5621853446. The cubic root of 2871541 is about 142.1363003922.

The spelling of 2871541 in words is "two million, eight hundred seventy-one thousand, five hundred forty-one".