2201564 has 12 divisors (see below), whose sum is σ = 3985800. Its totient is φ = 1062768.

The previous prime is 2201543. The next prime is 2201581. The reversal of 2201564 is 4651022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9374 + ... + 9605.

It is an arithmetic number, because the mean of its divisors is an integer number (332150).

2^2201564 is an apocalyptic number.

It is an amenable number.

2201564 is a deficient number, since it is larger than the sum of its proper divisors (1784236).

2201564 is a wasteful number, since it uses less digits than its factorization.

2201564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19012 (or 19010 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2201564 is about 1483.7668280427. The cubic root of 2201564 is about 130.0899574607.

Adding to 2201564 its reverse (4651022), we get a palindrome (6852586).

The spelling of 2201564 in words is "two million, two hundred one thousand, five hundred sixty-four".