2144945 has 16 divisors (see below), whose sum is σ = 2859840. Its totient is φ = 1531200.

The previous prime is 2144899. The next prime is 2144951. The reversal of 2144945 is 5494412.

It is not a de Polignac number, because 2144945 - 2⁸ = 2144689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2915 + ... + 3575.

It is an arithmetic number, because the mean of its divisors is an integer number (178740).

2^2144945 is an apocalyptic number.

It is an amenable number.

2144945 is a deficient number, since it is larger than the sum of its proper divisors (714895).

2144945 is a wasteful number, since it uses less digits than its factorization.

2144945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736.

The product of its digits is 5760, while the sum is 29.

The square root of 2144945 is about 1464.5630747769. The cubic root of 2144945 is about 128.9650567374.

The spelling of 2144945 in words is "two million, one hundred forty-four thousand, nine hundred forty-five".