2291565 has 16 divisors (see below), whose sum is σ = 3688128. Its totient is φ = 1214976.

The previous prime is 2291563. The next prime is 2291567. The reversal of 2291565 is 5651922.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2291563) and next prime (2291567).

It is not a de Polignac number, because 2291565 - 2¹ = 2291563 is a prime.

2291565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3069 + ... + 3741.

It is an arithmetic number, because the mean of its divisors is an integer number (230508).

2^2291565 is an apocalyptic number.

It is an amenable number.

2291565 is a deficient number, since it is larger than the sum of its proper divisors (1396563).

2291565 is a wasteful number, since it uses less digits than its factorization.

2291565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908.

The product of its digits is 5400, while the sum is 30.

The square root of 2291565 is about 1513.7915972815. The cubic root of 2291565 is about 131.8390485469.

The spelling of 2291565 in words is "two million, two hundred ninety-one thousand, five hundred sixty-five".