564785139 has 8 divisors (see below), whose sum is σ = 753315840. Its totient is φ = 376388936.

The previous prime is 564785107. The next prime is 564785167. The reversal of 564785139 is 931587465.

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 564785139 - 2⁵ = 564785107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (564785939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23379 + ... + 40940.

It is an arithmetic number, because the mean of its divisors is an integer number (94164480).

Almost surely, 2^564785139 is an apocalyptic number.

564785139 is a deficient number, since it is larger than the sum of its proper divisors (188530701).

564785139 is a wasteful number, since it uses less digits than its factorization.

564785139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67249.

The product of its digits is 907200, while the sum is 48.

The square root of 564785139 is about 23765.2085831368. The cubic root of 564785139 is about 826.5981334278.

The spelling of 564785139 in words is "five hundred sixty-four million, seven hundred eighty-five thousand, one hundred thirty-nine".