1217162339 has 2 divisors, whose sum is σ = 1217162340. Its totient is φ = 1217162338.

The previous prime is 1217162327. The next prime is 1217162347. The reversal of 1217162339 is 9332617121.

It is a strong prime.

It is an emirp because it is prime and its reverse (9332617121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1217162339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1217162299 and 1217162308.

It is not a weakly prime, because it can be changed into another prime (1217162839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608581169 + 608581170.

It is an arithmetic number, because the mean of its divisors is an integer number (608581170).

Almost surely, 2^1217162339 is an apocalyptic number.

1217162339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1217162339 is an equidigital number, since it uses as much as digits as its factorization.

1217162339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 1217162339 is about 34887.8537459672. The cubic root of 1217162339 is about 1067.7006375139.

The spelling of 1217162339 in words is "one billion, two hundred seventeen million, one hundred sixty-two thousand, three hundred thirty-nine".