2143125029 has 2 divisors, whose sum is σ = 2143125030. Its totient is φ = 2143125028.

The previous prime is 2143125001. The next prime is 2143125037. The reversal of 2143125029 is 9205213412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1789120804 + 354004225 = 42298^2 + 18815^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143125029 - 2¹⁶ = 2143059493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143124992 and 2143125010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143127029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071562514 + 1071562515.

It is an arithmetic number, because the mean of its divisors is an integer number (1071562515).

Almost surely, 2^2143125029 is an apocalyptic number.

It is an amenable number.

2143125029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143125029 is an equidigital number, since it uses as much as digits as its factorization.

2143125029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2143125029 is about 46293.8983992491. The cubic root of 2143125029 is about 1289.2857109661.

The spelling of 2143125029 in words is "two billion, one hundred forty-three million, one hundred twenty-five thousand, twenty-nine".