2140144 has 20 divisors (see below), whose sum is σ = 4175080. Its totient is φ = 1062720.

The previous prime is 2140139. The next prime is 2140157. The reversal of 2140144 is 4410412.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2527 + ... + 3265.

It is an arithmetic number, because the mean of its divisors is an integer number (208754).

2^2140144 is an apocalyptic number.

It is an amenable number.

2140144 is a deficient number, since it is larger than the sum of its proper divisors (2034936).

2140144 is a wasteful number, since it uses less digits than its factorization.

2140144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2140144 is about 1462.9231011916. The cubic root of 2140144 is about 128.8687646389.

Adding to 2140144 its reverse (4410412), we get a palindrome (6550556).

The spelling of 2140144 in words is "two million, one hundred forty thousand, one hundred forty-four".