568139 has 16 divisors (see below), whose sum is σ = 695520. Its totient is φ = 456960.

The previous prime is 568133. The next prime is 568151. The reversal of 568139 is 931865.

568139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 568139 - 2⁸ = 567883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (568133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4079 + ... + 4215.

It is an arithmetic number, because the mean of its divisors is an integer number (43470).

2⁵⁶⁸¹³⁹ is an apocalyptic number.

568139 is a deficient number, since it is larger than the sum of its proper divisors (127381).

568139 is a wasteful number, since it uses less digits than its factorization.

568139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its digits is 6480, while the sum is 32.

The square root of 568139 is about 753.7499585406. The cubic root of 568139 is about 82.8231099969.

It can be divided in two parts, 568 and 139, that added together give a palindrome (707).

The spelling of 568139 in words is "five hundred sixty-eight thousand, one hundred thirty-nine".