2188565 has 8 divisors (see below), whose sum is σ = 2740608. Its totient is φ = 1674640.

The previous prime is 2188541. The next prime is 2188583. The reversal of 2188565 is 5658812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2188565 - 2⁸ = 2188309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9401 + ... + 9630.

It is an arithmetic number, because the mean of its divisors is an integer number (342576).

2^2188565 is an apocalyptic number.

It is an amenable number.

2188565 is a deficient number, since it is larger than the sum of its proper divisors (552043).

2188565 is a wasteful number, since it uses less digits than its factorization.

2188565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19059.

The product of its digits is 19200, while the sum is 35.

The square root of 2188565 is about 1479.3799376766. The cubic root of 2188565 is about 129.8334158187.

The spelling of 2188565 in words is "two million, one hundred eighty-eight thousand, five hundred sixty-five".