542871 has 18 divisors (see below), whose sum is σ = 912912. Its totient is φ = 309960.

The previous prime is 542837. The next prime is 542873. The reversal of 542871 is 178245.

It is not a de Polignac number, because 542871 - 2¹¹ = 540823 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542873) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 175 + ... + 1056.

2⁵⁴²⁸⁷¹ is an apocalyptic number.

542871 is a deficient number, since it is larger than the sum of its proper divisors (370041).

542871 is a wasteful number, since it uses less digits than its factorization.

542871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1241 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 542871 is about 736.7978012997. The cubic root of 542871 is about 81.5765900263.

The spelling of 542871 in words is "five hundred forty-two thousand, eight hundred seventy-one".