1705299139 has 2 divisors, whose sum is σ = 1705299140. Its totient is φ = 1705299138.

The previous prime is 1705299131. The next prime is 1705299149. The reversal of 1705299139 is 9319925071.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1705299139 - 2³ = 1705299131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1705299131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 852649569 + 852649570.

It is an arithmetic number, because the mean of its divisors is an integer number (852649570).

Almost surely, 2^1705299139 is an apocalyptic number.

1705299139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1705299139 is an equidigital number, since it uses as much as digits as its factorization.

1705299139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 1705299139 is about 41295.2677555189. The cubic root of 1705299139 is about 1194.7219906140.

The spelling of 1705299139 in words is "one billion, seven hundred five million, two hundred ninety-nine thousand, one hundred thirty-nine".