2122131439 has 2 divisors, whose sum is σ = 2122131440. Its totient is φ = 2122131438.

The previous prime is 2122131433. The next prime is 2122131481. The reversal of 2122131439 is 9341312212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122131439 - 2⁷ = 2122131311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122131433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061065719 + 1061065720.

It is an arithmetic number, because the mean of its divisors is an integer number (1061065720).

Almost surely, 2^2122131439 is an apocalyptic number.

2122131439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122131439 is an equidigital number, since it uses as much as digits as its factorization.

2122131439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 2122131439 is about 46066.5978665671. The cubic root of 2122131439 is about 1285.0620345833.

The spelling of 2122131439 in words is "two billion, one hundred twenty-two million, one hundred thirty-one thousand, four hundred thirty-nine".