2126522453129 has 2 divisors, whose sum is σ = 2126522453130. Its totient is φ = 2126522453128.

The previous prime is 2126522453093. The next prime is 2126522453141. The reversal of 2126522453129 is 9213542256212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1261910729104 + 864611724025 = 1123348^2 + 929845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126522453129 - 2³⁶ = 2057802976393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2126522453129.

It is not a weakly prime, because it can be changed into another prime (2126522452129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063261226564 + 1063261226565.

It is an arithmetic number, because the mean of its divisors is an integer number (1063261226565).

Almost surely, 2^{2126522453129} is an apocalyptic number.

It is an amenable number.

2126522453129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126522453129 is an equidigital number, since it uses as much as digits as its factorization.

2126522453129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 44.

The spelling of 2126522453129 in words is "two trillion, one hundred twenty-six billion, five hundred twenty-two million, four hundred fifty-three thousand, one hundred twenty-nine".