201041565 has 16 divisors (see below), whose sum is σ = 338596800. Its totient is φ = 101578752.

The previous prime is 201041563. The next prime is 201041579. The reversal of 201041565 is 565140102.

It is not a de Polignac number, because 201041565 - 2¹ = 201041563 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201041563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352420 + ... + 352989.

It is an arithmetic number, because the mean of its divisors is an integer number (21162300).

Almost surely, 2^201041565 is an apocalyptic number.

It is an amenable number.

201041565 is a deficient number, since it is larger than the sum of its proper divisors (137555235).

201041565 is a wasteful number, since it uses less digits than its factorization.

201041565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705436.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 201041565 is about 14178.9126875089. The cubic root of 201041565 is about 585.8169752672.

Adding to 201041565 its reverse (565140102), we get a palindrome (766181667).

The spelling of 201041565 in words is "two hundred one million, forty-one thousand, five hundred sixty-five".