2117132747 has 2 divisors, whose sum is σ = 2117132748. Its totient is φ = 2117132746.

The previous prime is 2117132729. The next prime is 2117132803. The reversal of 2117132747 is 7472317112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2117132747 is a prime.

It is not a weakly prime, because it can be changed into another prime (2117132947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058566373 + 1058566374.

It is an arithmetic number, because the mean of its divisors is an integer number (1058566374).

Almost surely, 2^2117132747 is an apocalyptic number.

2117132747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117132747 is an equidigital number, since it uses as much as digits as its factorization.

2117132747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16464, while the sum is 35.

The square root of 2117132747 is about 46012.3108200403. The cubic root of 2117132747 is about 1284.0522511434.

Adding to 2117132747 its reverse (7472317112), we get a palindrome (9589449859).

The spelling of 2117132747 in words is "two billion, one hundred seventeen million, one hundred thirty-two thousand, seven hundred forty-seven".