2144315947 has 2 divisors, whose sum is σ = 2144315948. Its totient is φ = 2144315946.

The previous prime is 2144315939. The next prime is 2144315969. The reversal of 2144315947 is 7495134412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2144315947 - 2³ = 2144315939 is a prime.

It is not a weakly prime, because it can be changed into another prime (2144315977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072157973 + 1072157974.

It is an arithmetic number, because the mean of its divisors is an integer number (1072157974).

Almost surely, 2^2144315947 is an apocalyptic number.

2144315947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144315947 is an equidigital number, since it uses as much as digits as its factorization.

2144315947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 2144315947 is about 46306.7591934482. The cubic root of 2144315947 is about 1289.5244821092.

The spelling of 2144315947 in words is "two billion, one hundred forty-four million, three hundred fifteen thousand, nine hundred forty-seven".