564146389 has 4 divisors (see below), whose sum is σ = 564973056. Its totient is φ = 563319724.

The previous prime is 564146381. The next prime is 564146393. The reversal of 564146389 is 983641465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 564146389 - 2³ = 564146381 is a prime.

It is a super-2 number, since 2×564146389² = 636522296443478642, 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 (564146381) 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 3 ways as a sum of consecutive naturals, for example, 412309 + ... + 413674.

It is an arithmetic number, because the mean of its divisors is an integer number (141243264).

Almost surely, 2^564146389 is an apocalyptic number.

It is an amenable number.

564146389 is a deficient number, since it is larger than the sum of its proper divisors (826667).

564146389 is an equidigital number, since it uses as much as digits as its factorization.

564146389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826666.

The product of its digits is 622080, while the sum is 46.

The square root of 564146389 is about 23751.7660185511. The cubic root of 564146389 is about 826.2863991112.

The spelling of 564146389 in words is "five hundred sixty-four million, one hundred forty-six thousand, three hundred eighty-nine".