2125443017 has 2 divisors, whose sum is σ = 2125443018. Its totient is φ = 2125443016.

The previous prime is 2125442953. The next prime is 2125443029. The reversal of 2125443017 is 7103445212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1637739961 + 487703056 = 40469^2 + 22084^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125443017 - 2⁶ = 2125442953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2125443217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062721508 + 1062721509.

It is an arithmetic number, because the mean of its divisors is an integer number (1062721509).

Almost surely, 2^2125443017 is an apocalyptic number.

It is an amenable number.

2125443017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125443017 is an equidigital number, since it uses as much as digits as its factorization.

2125443017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2125443017 is about 46102.5272300771. The cubic root of 2125443017 is about 1285.7301319805.

Adding to 2125443017 its reverse (7103445212), we get a palindrome (9228888229).

The spelling of 2125443017 in words is "two billion, one hundred twenty-five million, four hundred forty-three thousand, seventeen".