2047135439 has 2 divisors, whose sum is σ = 2047135440. Its totient is φ = 2047135438.

The previous prime is 2047135429. The next prime is 2047135463. The reversal of 2047135439 is 9345317402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2047135439 - 2²⁸ = 1778699983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2047135429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023567719 + 1023567720.

It is an arithmetic number, because the mean of its divisors is an integer number (1023567720).

Almost surely, 2^2047135439 is an apocalyptic number.

2047135439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2047135439 is an equidigital number, since it uses as much as digits as its factorization.

2047135439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 2047135439 is about 45245.2808478409. The cubic root of 2047135439 is about 1269.7421178498.

The spelling of 2047135439 in words is "two billion, forty-seven million, one hundred thirty-five thousand, four hundred thirty-nine".