2731124917 has 2 divisors, whose sum is σ = 2731124918. Its totient is φ = 2731124916.

The previous prime is 2731124897. The next prime is 2731124947. The reversal of 2731124917 is 7194211372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2696621041 + 34503876 = 51929^2 + 5874^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731124917 - 2⁷ = 2731124789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731124947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365562458 + 1365562459.

It is an arithmetic number, because the mean of its divisors is an integer number (1365562459).

Almost surely, 2^2731124917 is an apocalyptic number.

It is an amenable number.

2731124917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731124917 is an equidigital number, since it uses as much as digits as its factorization.

2731124917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 2731124917 is about 52260.1656809467. The cubic root of 2731124917 is about 1397.8069264195.

The spelling of 2731124917 in words is "two billion, seven hundred thirty-one million, one hundred twenty-four thousand, nine hundred seventeen".