2125344139 has 2 divisors, whose sum is σ = 2125344140. Its totient is φ = 2125344138.

The previous prime is 2125344077. The next prime is 2125344209. The reversal of 2125344139 is 9314435212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2125344139 - 2²³ = 2116955531 is a prime.

It is not a weakly prime, because it can be changed into another prime (2125344439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062672069 + 1062672070.

It is an arithmetic number, because the mean of its divisors is an integer number (1062672070).

Almost surely, 2^2125344139 is an apocalyptic number.

2125344139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125344139 is an equidigital number, since it uses as much as digits as its factorization.

2125344139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 2125344139 is about 46101.4548468918. The cubic root of 2125344139 is about 1285.7101938006.

The spelling of 2125344139 in words is "two billion, one hundred twenty-five million, three hundred forty-four thousand, one hundred thirty-nine".