814115219 has 2 divisors, whose sum is σ = 814115220. Its totient is φ = 814115218.

The previous prime is 814115209. The next prime is 814115251. The reversal of 814115219 is 912511418.

It is an a-pointer prime, because the next prime (814115251) can be obtained adding 814115219 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-814115219 is a prime.

It is a super-2 number, since 2×814115219² = 1325567179614835922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (814115209) 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, 407057609 + 407057610.

It is an arithmetic number, because the mean of its divisors is an integer number (407057610).

Almost surely, 2^814115219 is an apocalyptic number.

814115219 is a deficient number, since it is larger than the sum of its proper divisors (1).

814115219 is an equidigital number, since it uses as much as digits as its factorization.

814115219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 32.

The square root of 814115219 is about 28532.7043758561. The cubic root of 814115219 is about 933.7457207244.

The spelling of 814115219 in words is "eight hundred fourteen million, one hundred fifteen thousand, two hundred nineteen".