1216114619 has 2 divisors, whose sum is σ = 1216114620. Its totient is φ = 1216114618.

The previous prime is 1216114609. The next prime is 1216114633. The reversal of 1216114619 is 9164116121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1216114619 is a prime.

It is a super-2 number, since 2×1216114619² = 2957869533091030322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1216114609) 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, 608057309 + 608057310.

It is an arithmetic number, because the mean of its divisors is an integer number (608057310).

Almost surely, 2^1216114619 is an apocalyptic number.

1216114619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1216114619 is an equidigital number, since it uses as much as digits as its factorization.

1216114619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 32.

The square root of 1216114619 is about 34872.8349722244. The cubic root of 1216114619 is about 1067.3941945677.

The spelling of 1216114619 in words is "one billion, two hundred sixteen million, one hundred fourteen thousand, six hundred nineteen".