4201565 has 16 divisors (see below), whose sum is σ = 5425920. Its totient is φ = 3113280.

The previous prime is 4201537. The next prime is 4201577. The reversal of 4201565 is 5651024.

4201565 = 243² + 244² + ... + 299².

It is not a de Polignac number, because 4201565 - 2⁶ = 4201501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4201565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3995 + ... + 4935.

It is an arithmetic number, because the mean of its divisors is an integer number (339120).

Almost surely, 2^4201565 is an apocalyptic number.

It is an amenable number.

4201565 is a deficient number, since it is larger than the sum of its proper divisors (1224355).

4201565 is a wasteful number, since it uses less digits than its factorization.

4201565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 4201565 is about 2049.7719385337. The cubic root of 4201565 is about 161.3629019221.

Adding to 4201565 its reverse (5651024), we get a palindrome (9852589).

The spelling of 4201565 in words is "four million, two hundred one thousand, five hundred sixty-five".