2142647743 has 4 divisors (see below), whose sum is σ = 2143633240. Its totient is φ = 2141662248.

The previous prime is 2142647737. The next prime is 2142647783. The reversal of 2142647743 is 3477462412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2142647743 - 2⁹ = 2142647231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142647696 and 2142647705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142647713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489480 + ... + 493837.

It is an arithmetic number, because the mean of its divisors is an integer number (535908310).

Almost surely, 2^2142647743 is an apocalyptic number.

2142647743 is a deficient number, since it is larger than the sum of its proper divisors (985497).

2142647743 is an equidigital number, since it uses as much as digits as its factorization.

2142647743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985496.

The product of its digits is 225792, while the sum is 40.

The square root of 2142647743 is about 46288.7431564090. The cubic root of 2142647743 is about 1289.1899934666.

It can be divided in two parts, 21426 and 47743, that added together give a square (69169 = 263²).

The spelling of 2142647743 in words is "two billion, one hundred forty-two million, six hundred forty-seven thousand, seven hundred forty-three".