2120564 has 12 divisors (see below), whose sum is σ = 3747744. Its totient is φ = 1049784.

The previous prime is 2120551. The next prime is 2120579. The reversal of 2120564 is 4650212.

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, 2162 + ... + 2985.

It is an arithmetic number, because the mean of its divisors is an integer number (312312).

2^2120564 is an apocalyptic number.

It is an amenable number.

2120564 is a deficient number, since it is larger than the sum of its proper divisors (1627180).

2120564 is a wasteful number, since it uses less digits than its factorization.

2120564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254 (or 5252 counting only the distinct ones).

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

The square root of 2120564 is about 1456.2156433715. The cubic root of 2120564 is about 128.4745567777.

Adding to 2120564 its reverse (4650212), we get a palindrome (6770776).

The spelling of 2120564 in words is "two million, one hundred twenty thousand, five hundred sixty-four".