542303 has 4 divisors (see below), whose sum is σ = 544920. Its totient is φ = 539688.

The previous prime is 542299. The next prime is 542323. The reversal of 542303 is 303245.

542303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303245 = 5 ⋅60649.

It is a cyclic number.

It is not a de Polignac number, because 542303 - 2² = 542299 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 (542323) 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, 968 + ... + 1421.

It is an arithmetic number, because the mean of its divisors is an integer number (136230).

2⁵⁴²³⁰³ is an apocalyptic number.

542303 is a deficient number, since it is larger than the sum of its proper divisors (2617).

542303 is a wasteful number, since it uses less digits than its factorization.

542303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 542303 is about 736.4122486760. The cubic root of 542303 is about 81.5481291994.

Adding to 542303 its reverse (303245), we get a palindrome (845548).

The spelling of 542303 in words is "five hundred forty-two thousand, three hundred three".