2182564 has 6 divisors (see below), whose sum is σ = 3819494. Its totient is φ = 1091280.

The previous prime is 2182561. The next prime is 2182567. The reversal of 2182564 is 4652812.

It is an interprime number because it is at equal distance from previous prime (2182561) and next prime (2182567).

It can be written as a sum of positive squares in only one way, i.e., 1542564 + 640000 = 1242^2 + 800^2 .

It is a super-2 number, since 2×2182564² = 9527171228192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2182561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272817 + ... + 272824.

2^2182564 is an apocalyptic number.

It is an amenable number.

2182564 is a deficient number, since it is larger than the sum of its proper divisors (1636930).

2182564 is a wasteful number, since it uses less digits than its factorization.

2182564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545645 (or 545643 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 2182564 is about 1477.3503308288. The cubic root of 2182564 is about 129.7146403449.

The spelling of 2182564 in words is "two million, one hundred eighty-two thousand, five hundred sixty-four".