1219329017 has 2 divisors, whose sum is σ = 1219329018. Its totient is φ = 1219329016.

The previous prime is 1219328993. The next prime is 1219329101. The reversal of 1219329017 is 7109239121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1022656441 + 196672576 = 31979^2 + 14024^2 .

It is an emirp because it is prime and its reverse (7109239121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1219329017 - 2⁶ = 1219328953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1219349017) 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, 609664508 + 609664509.

It is an arithmetic number, because the mean of its divisors is an integer number (609664509).

Almost surely, 2^1219329017 is an apocalyptic number.

It is an amenable number.

1219329017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219329017 is an equidigital number, since it uses as much as digits as its factorization.

1219329017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 1219329017 is about 34918.8919784119. The cubic root of 1219329017 is about 1068.3338020712. Note that the first 3 decimals are identical.

The spelling of 1219329017 in words is "one billion, two hundred nineteen million, three hundred twenty-nine thousand, seventeen".