564128319 has 4 divisors (see below), whose sum is σ = 752171096. Its totient is φ = 376085544.

The previous prime is 564128287. The next prime is 564128333. The reversal of 564128319 is 913821465.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 564128319 - 2⁵ = 564128287 is a prime.

It is a super-2 number, since 2×564128319² = 636481520595531522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564128339) 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 3 ways as a sum of consecutive naturals, for example, 94021384 + ... + 94021389.

It is an arithmetic number, because the mean of its divisors is an integer number (188042774).

Almost surely, 2^564128319 is an apocalyptic number.

564128319 is a deficient number, since it is larger than the sum of its proper divisors (188042777).

564128319 is a wasteful number, since it uses less digits than its factorization.

564128319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188042776.

The product of its digits is 51840, while the sum is 39.

The square root of 564128319 is about 23751.3856227379. The cubic root of 564128319 is about 826.2775768415.

The spelling of 564128319 in words is "five hundred sixty-four million, one hundred twenty-eight thousand, three hundred nineteen".