540259 has 4 divisors (see below), whose sum is σ = 541816. Its totient is φ = 538704.

The previous prime is 540251. The next prime is 540269. The reversal of 540259 is 952045.

540259 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: 952045 = 5 ⋅190409.

It is a cyclic number.

It is not a de Polignac number, because 540259 - 2³ = 540251 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540251) 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, 7 + ... + 1039.

It is an arithmetic number, because the mean of its divisors is an integer number (135454).

2⁵⁴⁰²⁵⁹ is an apocalyptic number.

540259 is a deficient number, since it is larger than the sum of its proper divisors (1557).

540259 is a wasteful number, since it uses less digits than its factorization.

540259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 540259 is about 735.0231288878. The cubic root of 540259 is about 81.4455455681.

It can be divided in two parts, 5 and 40259, that multiplied together give a triangular number (201295 = T₆₃₄).

The spelling of 540259 in words is "five hundred forty thousand, two hundred fifty-nine".