534971565 has 12 divisors (see below), whose sum is σ = 927284124. Its totient is φ = 285318144.

The previous prime is 534971561. The next prime is 534971573. The reversal of 534971565 is 565179435.

534971565 is a `hidden beast` number, since 5 + 3 + 497 + 156 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 341288676 + 193682889 = 18474^2 + 13917^2 .

It is not a de Polignac number, because 534971565 - 2² = 534971561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 11888257 = 534971565 / (5 + 3 + 4 + 9 + 7 + 1 + 5 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 534971565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534971561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5944084 + ... + 5944173.

It is an arithmetic number, because the mean of its divisors is an integer number (77273677).

Almost surely, 2^534971565 is an apocalyptic number.

It is an amenable number.

534971565 is a deficient number, since it is larger than the sum of its proper divisors (392312559).

534971565 is a wasteful number, since it uses less digits than its factorization.

534971565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11888268 (or 11888265 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 534971565 is about 23129.4523281465. The cubic root of 534971565 is about 811.7897553382.

The spelling of 534971565 in words is "five hundred thirty-four million, nine hundred seventy-one thousand, five hundred sixty-five".