2125937389 has 2 divisors, whose sum is σ = 2125937390. Its totient is φ = 2125937388.

The previous prime is 2125937381. The next prime is 2125937441. The reversal of 2125937389 is 9837395212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1821155625 + 304781764 = 42675^2 + 17458^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125937389 - 2³ = 2125937381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2125937381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062968694 + 1062968695.

It is an arithmetic number, because the mean of its divisors is an integer number (1062968695).

Almost surely, 2^2125937389 is an apocalyptic number.

It is an amenable number.

2125937389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125937389 is an equidigital number, since it uses as much as digits as its factorization.

2125937389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 2125937389 is about 46107.8885766850. Note that the first 3 decimals coincide. The cubic root of 2125937389 is about 1285.8298099764.

The spelling of 2125937389 in words is "two billion, one hundred twenty-five million, nine hundred thirty-seven thousand, three hundred eighty-nine".