2163140 has 24 divisors (see below), whose sum is σ = 5191872. Its totient is φ = 741600.

The previous prime is 2163137. The next prime is 2163163. The reversal of 2163140 is 413612.

It is an Ulam 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, 7586 + ... + 7865.

It is an arithmetic number, because the mean of its divisors is an integer number (216328).

2^2163140 is an apocalyptic number.

2163140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163140 is an abundant number, since it is smaller than the sum of its proper divisors (3028732).

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

2163140 is a wasteful number, since it uses less digits than its factorization.

2163140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15467 (or 15465 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2163140 is about 1470.7617074156. The cubic root of 2163140 is about 129.3286892677.

Adding to 2163140 its reverse (413612), we get a palindrome (2576752).

The spelling of 2163140 in words is "two million, one hundred sixty-three thousand, one hundred forty".