2144722743 has 12 divisors (see below), whose sum is σ = 3109452840. Its totient is φ = 1424498256.

The previous prime is 2144722733. The next prime is 2144722759. The reversal of 2144722743 is 3472274412.

It is a de Polignac number, because none of the positive numbers 2^k-2144722743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2144722698 and 2144722707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144722733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440521 + ... + 445362.

It is an arithmetic number, because the mean of its divisors is an integer number (259121070).

Almost surely, 2^2144722743 is an apocalyptic number.

2144722743 is a deficient number, since it is larger than the sum of its proper divisors (964730097).

2144722743 is a wasteful number, since it uses less digits than its factorization.

2144722743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886158 (or 886155 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 2144722743 is about 46311.1513892712. The cubic root of 2144722743 is about 1289.6060217463.

The spelling of 2144722743 in words is "two billion, one hundred forty-four million, seven hundred twenty-two thousand, seven hundred forty-three".