542863 has 4 divisors (see below), whose sum is σ = 544360. Its totient is φ = 541368.

The previous prime is 542837. The next prime is 542873. The reversal of 542863 is 368245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 542863 - 2⁵ = 542831 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 (542873) 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, 181 + ... + 1057.

It is an arithmetic number, because the mean of its divisors is an integer number (136090).

2⁵⁴²⁸⁶³ is an apocalyptic number.

542863 is a deficient number, since it is larger than the sum of its proper divisors (1497).

542863 is an equidigital number, since it uses as much as digits as its factorization.

542863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496.

The product of its digits is 5760, while the sum is 28.

The square root of 542863 is about 736.7923723818. The cubic root of 542863 is about 81.5761893074.

It can be divided in two parts, 54286 and 3, that added together give a square (54289 = 233²).

The spelling of 542863 in words is "five hundred forty-two thousand, eight hundred sixty-three".