2140564 has 24 divisors (see below), whose sum is σ = 3991680. Its totient is φ = 1002144.

The previous prime is 2140549. The next prime is 2140573. The reversal of 2140564 is 4650412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4657 + ... + 5095.

It is an arithmetic number, because the mean of its divisors is an integer number (166320).

2^2140564 is an apocalyptic number.

It is an amenable number.

2140564 is a deficient number, since it is larger than the sum of its proper divisors (1851116).

2140564 is a wasteful number, since it uses less digits than its factorization.

2140564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2140564 is about 1463.0666423646. The cubic root of 2140564 is about 128.8771941871.

Adding to 2140564 its reverse (4650412), we get a palindrome (6790976).

It can be divided in two parts, 2140 and 564, that added together give a square (2704 = 52²).

The spelling of 2140564 in words is "two million, one hundred forty thousand, five hundred sixty-four".