1213708339 has 2 divisors, whose sum is σ = 1213708340. Its totient is φ = 1213708338.

The previous prime is 1213708333. The next prime is 1213708403. The reversal of 1213708339 is 9338073121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213708339 - 2⁷ = 1213708211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213708298 and 1213708307.

It is not a weakly prime, because it can be changed into another prime (1213708333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606854169 + 606854170.

It is an arithmetic number, because the mean of its divisors is an integer number (606854170).

Almost surely, 2^1213708339 is an apocalyptic number.

1213708339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213708339 is an equidigital number, since it uses as much as digits as its factorization.

1213708339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 1213708339 is about 34838.3171091831. The cubic root of 1213708339 is about 1066.6897255540.

The spelling of 1213708339 in words is "one billion, two hundred thirteen million, seven hundred eight thousand, three hundred thirty-nine".