2150564 has 12 divisors (see below), whose sum is σ = 4053084. Its totient is φ = 992544.

The previous prime is 2150543. The next prime is 2150567. The reversal of 2150564 is 4650512.

It can be written as a sum of positive squares in 2 ways, for example, as 846400 + 1304164 = 920^2 + 1142^2 .

It is not an unprimeable number, because it can be changed into a prime (2150567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20627 + ... + 20730.

It is an arithmetic number, because the mean of its divisors is an integer number (337757).

2^2150564 is an apocalyptic number.

It is an amenable number.

2150564 is a deficient number, since it is larger than the sum of its proper divisors (1902520).

2150564 is a wasteful number, since it uses less digits than its factorization.

2150564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41374 (or 41372 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2150564 is about 1466.4801396541. The cubic root of 2150564 is about 129.0775728770.

The spelling of 2150564 in words is "two million, one hundred fifty thousand, five hundred sixty-four".