542279 has 4 divisors (see below), whose sum is σ = 570840. Its totient is φ = 513720.

The previous prime is 542263. The next prime is 542281. The reversal of 542279 is 972245.

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

It is a cyclic number.

It is not a de Polignac number, because 542279 - 2⁴ = 542263 is a prime.

It is a d-powerful number, because it can be written as 5⁵ + 4³ + 2¹³ + 2¹⁹ + 7² + 9⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542219) 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, 14252 + ... + 14289.

It is an arithmetic number, because the mean of its divisors is an integer number (142710).

2⁵⁴²²⁷⁹ is an apocalyptic number.

542279 is a deficient number, since it is larger than the sum of its proper divisors (28561).

542279 is a wasteful number, since it uses less digits than its factorization.

542279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28560.

The product of its digits is 5040, while the sum is 29.

The square root of 542279 is about 736.3959532751. The cubic root of 542279 is about 81.5469261917.

The spelling of 542279 in words is "five hundred forty-two thousand, two hundred seventy-nine".