542065 has 4 divisors (see below), whose sum is σ = 650484. Its totient is φ = 433648.

The previous prime is 542063. The next prime is 542071. The reversal of 542065 is 560245.

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

It can be written as a sum of positive squares in 2 ways, for example, as 141376 + 400689 = 376^2 + 633^2 .

It is a cyclic number.

It is not a de Polignac number, because 542065 - 2¹ = 542063 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542063) 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, 54202 + ... + 54211.

It is an arithmetic number, because the mean of its divisors is an integer number (162621).

2⁵⁴²⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

542065 is a deficient number, since it is larger than the sum of its proper divisors (108419).

542065 is a wasteful number, since it uses less digits than its factorization.

542065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108418.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 542065 is about 736.2506366721. The cubic root of 542065 is about 81.5361978039.

The spelling of 542065 in words is "five hundred forty-two thousand, sixty-five".