4061565 has 24 divisors (see below), whose sum is σ = 7207200. Its totient is φ = 2114784.

The previous prime is 4061557. The next prime is 4061567. The reversal of 4061565 is 5651604.

It is a happy number.

4061565 is a `hidden beast` number, since 40 + 61 + 565 = 666.

It is not a de Polignac number, because 4061565 - 2³ = 4061557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4061567) 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 23 ways as a sum of consecutive naturals, for example, 886 + ... + 2984.

It is an arithmetic number, because the mean of its divisors is an integer number (300300).

Almost surely, 2^4061565 is an apocalyptic number.

4061565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4061565 is a deficient number, since it is larger than the sum of its proper divisors (3145635).

4061565 is a wasteful number, since it uses less digits than its factorization.

4061565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 4061565 is about 2015.3324787737. The cubic root of 4061565 is about 159.5503652163.

The spelling of 4061565 in words is "four million, sixty-one thousand, five hundred sixty-five".