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539 = 7211

539 has 6 divisors (see below), whose sum is σ = 684. Its totient is φ = 420.

The previous prime is 523. The next prime is 541. The reversal of 539 is 935.

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

It is not a de Polignac number, because 539 - 24 = 523 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6, base 12 and base 15.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44 + ... + 54.

It is an arithmetic number, because the mean of its divisors is an integer number (114).

2539 is an apocalyptic number.

539 is a deficient number, since it is larger than the sum of its proper divisors (145).

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

539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25 (or 18 counting only the distinct ones).

The product of its digits is 135, while the sum is 17.

The square root of 539 is about 23.2163735325. The cubic root of 539 is about 8.1382230444.

Subtracting from 539 its product of digits (135), we obtain a palindrome (404).

It can be divided in two parts, 5 and 39, that added together give a palindrome (44).

The spelling of 539 in words is "five hundred thirty-nine", and thus it is an aban number and an oban number.

Divisors: 1 7 11 49 77 539