2133564 has 12 divisors (see below), whose sum is σ = 4978344. Its totient is φ = 711184.

The previous prime is 2133563. The next prime is 2133587. The reversal of 2133564 is 4653312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 2²¹ + 1 + 3 + 3⁹ + 5³ + 6³ + 4⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88887 + ... + 88910.

It is an arithmetic number, because the mean of its divisors is an integer number (414862).

2^2133564 is an apocalyptic number.

It is an amenable number.

2133564 is an abundant number, since it is smaller than the sum of its proper divisors (2844780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2133564 is a wasteful number, since it uses less digits than its factorization.

2133564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177804 (or 177802 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 2133564 is about 1460.6724478815. The cubic root of 2133564 is about 128.7365574931.

Adding to 2133564 its reverse (4653312), we get a palindrome (6786876).

The spelling of 2133564 in words is "two million, one hundred thirty-three thousand, five hundred sixty-four".