2144939 has 6 divisors (see below), whose sum is σ = 2193804. Its totient is φ = 2097140.

The previous prime is 2144899. The next prime is 2144951. The reversal of 2144939 is 9394412.

It is a happy number.

2144939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2144939 - 2⁸ = 2144683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1724 + ... + 2694.

It is an arithmetic number, because the mean of its divisors is an integer number (365634).

2^2144939 is an apocalyptic number.

2144939 is a deficient number, since it is larger than the sum of its proper divisors (48865).

2144939 is an frugal number, since it uses more digits than its factorization.

2144939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065 (or 1018 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 2144939 is about 1464.5610263830. The cubic root of 2144939 is about 128.9649364871.

The spelling of 2144939 in words is "two million, one hundred forty-four thousand, nine hundred thirty-nine".