566139 has 8 divisors (see below), whose sum is σ = 862720. Its totient is φ = 323496.

The previous prime is 566131. The next prime is 566149. The reversal of 566139 is 931665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 566139 - 2³ = 566131 is a prime.

It is a Duffinian number.

566139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (566131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13459 + ... + 13500.

It is an arithmetic number, because the mean of its divisors is an integer number (107840).

2⁵⁶⁶¹³⁹ is an apocalyptic number.

566139 is a deficient number, since it is larger than the sum of its proper divisors (296581).

566139 is a wasteful number, since it uses less digits than its factorization.

566139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26969.

The product of its digits is 4860, while the sum is 30.

The square root of 566139 is about 752.4220889899. The cubic root of 566139 is about 82.7258092930.

The spelling of 566139 in words is "five hundred sixty-six thousand, one hundred thirty-nine".