565165145 has 4 divisors (see below), whose sum is σ = 678198180. Its totient is φ = 452132112.

The previous prime is 565165103. The next prime is 565165147. The reversal of 565165145 is 541561565.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 433305856 + 131859289 = 20816^2 + 11483^2 .

It is a cyclic number.

It is not a de Polignac number, because 565165145 - 2⁸ = 565164889 is a prime.

It is a super-2 number, since 2×565165145² = 638823282245742050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 565165099 and 565165108.

It is not an unprimeable number, because it can be changed into a prime (565165147) 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 3 ways as a sum of consecutive naturals, for example, 56516510 + ... + 56516519.

It is an arithmetic number, because the mean of its divisors is an integer number (169549545).

Almost surely, 2^565165145 is an apocalyptic number.

It is an amenable number.

565165145 is a deficient number, since it is larger than the sum of its proper divisors (113033035).

565165145 is a wasteful number, since it uses less digits than its factorization.

565165145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113033034.

The product of its digits is 90000, while the sum is 38.

The square root of 565165145 is about 23773.2022453855. The cubic root of 565165145 is about 826.7834793270.

The spelling of 565165145 in words is "five hundred sixty-five million, one hundred sixty-five thousand, one hundred forty-five".