565136109 has 16 divisors (see below), whose sum is σ = 847578240. Its totient is φ = 376755948.

The previous prime is 565136081. The next prime is 565136111. The reversal of 565136109 is 901631565.

It is not a de Polignac number, because 565136109 - 2⁸ = 565135853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565136129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127017 + ... + 131390.

It is an arithmetic number, because the mean of its divisors is an integer number (52973640).

Almost surely, 2^565136109 is an apocalyptic number.

It is an amenable number.

565136109 is a deficient number, since it is larger than the sum of its proper divisors (282442131).

565136109 is an frugal number, since it uses more digits than its factorization.

565136109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258428 (or 258410 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 565136109 is about 23772.5915499341. The cubic root of 565136109 is about 826.7693201050.

The spelling of 565136109 in words is "five hundred sixty-five million, one hundred thirty-six thousand, one hundred nine".