2139458263 has 2 divisors, whose sum is σ = 2139458264. Its totient is φ = 2139458262.

The previous prime is 2139458239. The next prime is 2139458281. The reversal of 2139458263 is 3628549312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2139458263 - 2⁹ = 2139457751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2139458203) 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, 1069729131 + 1069729132.

It is an arithmetic number, because the mean of its divisors is an integer number (1069729132).

Almost surely, 2^2139458263 is an apocalyptic number.

2139458263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2139458263 is an equidigital number, since it uses as much as digits as its factorization.

2139458263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 43.

The square root of 2139458263 is about 46254.2783210375. The cubic root of 2139458263 is about 1288.5499928477.

The spelling of 2139458263 in words is "two billion, one hundred thirty-nine million, four hundred fifty-eight thousand, two hundred sixty-three".