564139 has 8 divisors (see below), whose sum is σ = 589760. Its totient is φ = 539136.

The previous prime is 564133. The next prime is 564149. The reversal of 564139 is 931465.

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

It is a cyclic number.

It is not a de Polignac number, because 564139 - 2¹¹ = 562091 is a prime.

It is a super-2 number, since 2×564139² = 636505622642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564133) 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, 2827 + ... + 3019.

It is an arithmetic number, because the mean of its divisors is an integer number (73720).

2⁵⁶⁴¹³⁹ is an apocalyptic number.

564139 is a deficient number, since it is larger than the sum of its proper divisors (25621).

564139 is a wasteful number, since it uses less digits than its factorization.

564139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its digits is 3240, while the sum is 28.

The square root of 564139 is about 751.0918718772. The cubic root of 564139 is about 82.6282791621.

It can be divided in two parts, 564 and 139, that added together give a triangular number (703 = T₃₇).

The spelling of 564139 in words is "five hundred sixty-four thousand, one hundred thirty-nine".