2143560 has 32 divisors (see below), whose sum is σ = 6431040. Its totient is φ = 571584.

The previous prime is 2143543. The next prime is 2143567. The reversal of 2143560 is 653412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2143567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8812 + ... + 9051.

It is an arithmetic number, because the mean of its divisors is an integer number (200970).

2^2143560 is an apocalyptic number.

2143560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143560 is an abundant number, since it is smaller than the sum of its proper divisors (4287480).

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

2143560 is a wasteful number, since it uses less digits than its factorization.

2143560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17877 (or 17873 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2143560 is about 1464.0901611581. The cubic root of 2143560 is about 128.9372930012.

Adding to 2143560 its reverse (653412), we get a palindrome (2796972).

The spelling of 2143560 in words is "two million, one hundred forty-three thousand, five hundred sixty".