2131798741 has 2 divisors, whose sum is σ = 2131798742. Its totient is φ = 2131798740.

The previous prime is 2131798717. The next prime is 2131798751. The reversal of 2131798741 is 1478971312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1480017841 + 651780900 = 38471^2 + 25530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131798741 - 2⁵ = 2131798709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131798751) 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, 1065899370 + 1065899371.

It is an arithmetic number, because the mean of its divisors is an integer number (1065899371).

Almost surely, 2^2131798741 is an apocalyptic number.

It is an amenable number.

2131798741 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131798741 is an equidigital number, since it uses as much as digits as its factorization.

2131798741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 43.

The square root of 2131798741 is about 46171.4060972806. The cubic root of 2131798741 is about 1287.0104319709.

The spelling of 2131798741 in words is "two billion, one hundred thirty-one million, seven hundred ninety-eight thousand, seven hundred forty-one".