2542871 has 4 divisors (see below), whose sum is σ = 2573592. Its totient is φ = 2512152.

The previous prime is 2542853. The next prime is 2542879. The reversal of 2542871 is 1782452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2542871 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 (2542879) 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, 15236 + ... + 15401.

It is an arithmetic number, because the mean of its divisors is an integer number (643398).

2^2542871 is an apocalyptic number.

2542871 is a deficient number, since it is larger than the sum of its proper divisors (30721).

2542871 is an equidigital number, since it uses as much as digits as its factorization.

2542871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30720.

The product of its digits is 4480, while the sum is 29.

The square root of 2542871 is about 1594.6382034807. The cubic root of 2542871 is about 136.4922866828.

It can be divided in two parts, 254 and 2871, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2542871 in words is "two million, five hundred forty-two thousand, eight hundred seventy-one".