2126135513 has 2 divisors, whose sum is σ = 2126135514. Its totient is φ = 2126135512.

The previous prime is 2126135509. The next prime is 2126135519. The reversal of 2126135513 is 3155316212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1644464704 + 481670809 = 40552^2 + 21947^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126135513 - 2² = 2126135509 is a prime.

It is not a weakly prime, because it can be changed into another prime (2126135519) 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, 1063067756 + 1063067757.

It is an arithmetic number, because the mean of its divisors is an integer number (1063067757).

Almost surely, 2^2126135513 is an apocalyptic number.

It is an amenable number.

2126135513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126135513 is an equidigital number, since it uses as much as digits as its factorization.

2126135513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 2126135513 is about 46110.0370093107. The cubic root of 2126135513 is about 1285.8697524873.

The spelling of 2126135513 in words is "two billion, one hundred twenty-six million, one hundred thirty-five thousand, five hundred thirteen".