540159 has 4 divisors (see below), whose sum is σ = 720216. Its totient is φ = 360104.

The previous prime is 540157. The next prime is 540167. The reversal of 540159 is 951045.

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 540159 - 2¹ = 540157 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540157) 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, 90024 + ... + 90029.

It is an arithmetic number, because the mean of its divisors is an integer number (180054).

2⁵⁴⁰¹⁵⁹ is an apocalyptic number.

540159 is a deficient number, since it is larger than the sum of its proper divisors (180057).

540159 is a wasteful number, since it uses less digits than its factorization.

540159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180056.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 540159 is about 734.9551006694. The cubic root of 540159 is about 81.4405201654.

It can be divided in two parts, 5401 and 59, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 540159 in words is "five hundred forty thousand, one hundred fifty-nine".