2126505229 has 2 divisors, whose sum is σ = 2126505230. Its totient is φ = 2126505228.

The previous prime is 2126505211. The next prime is 2126505247. The reversal of 2126505229 is 9225056212.

It is a balanced prime because it is at equal distance from previous prime (2126505211) and next prime (2126505247).

It can be written as a sum of positive squares in only one way, i.e., 2011522500 + 114982729 = 44850^2 + 10723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2126505229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2126505194 and 2126505203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2126505209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063252614 + 1063252615.

It is an arithmetic number, because the mean of its divisors is an integer number (1063252615).

Almost surely, 2^2126505229 is an apocalyptic number.

It is an amenable number.

2126505229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126505229 is an equidigital number, since it uses as much as digits as its factorization.

2126505229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 2126505229 is about 46114.0458971017. The cubic root of 2126505229 is about 1285.9442819274.

The spelling of 2126505229 in words is "two billion, one hundred twenty-six million, five hundred five thousand, two hundred twenty-nine".