1212047339 has 2 divisors, whose sum is σ = 1212047340. Its totient is φ = 1212047338.

The previous prime is 1212047311. The next prime is 1212047401. The reversal of 1212047339 is 9337402121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212047339 - 2²⁴ = 1195270123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212047539) 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, 606023669 + 606023670.

It is an arithmetic number, because the mean of its divisors is an integer number (606023670).

Almost surely, 2^1212047339 is an apocalyptic number.

1212047339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212047339 is an equidigital number, since it uses as much as digits as its factorization.

1212047339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 1212047339 is about 34814.4702530428. The cubic root of 1212047339 is about 1066.2029033539.

The spelling of 1212047339 in words is "one billion, two hundred twelve million, forty-seven thousand, three hundred thirty-nine".