542203 has 4 divisors (see below), whose sum is σ = 570760. Its totient is φ = 513648.

The previous prime is 542197. The next prime is 542207. The reversal of 542203 is 302245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302245 = 5 ⋅60449.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14250 + ... + 14287.

It is an arithmetic number, because the mean of its divisors is an integer number (142690).

2⁵⁴²²⁰³ is an apocalyptic number.

542203 is a deficient number, since it is larger than the sum of its proper divisors (28557).

542203 is a wasteful number, since it uses less digits than its factorization.

542203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28556.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 542203 is about 736.3443487934. The cubic root of 542203 is about 81.5431164333.

Adding to 542203 its reverse (302245), we get a palindrome (844448).

The spelling of 542203 in words is "five hundred forty-two thousand, two hundred three".