1230178219 has 2 divisors, whose sum is σ = 1230178220. Its totient is φ = 1230178218.

The previous prime is 1230178193. The next prime is 1230178247. The reversal of 1230178219 is 9128710321.

It is a weak prime.

It is an emirp because it is prime and its reverse (9128710321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230178219 is a prime.

It is a super-2 number, since 2×1230178219² = 3026676901004023922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1230178249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615089109 + 615089110.

It is an arithmetic number, because the mean of its divisors is an integer number (615089110).

Almost surely, 2^1230178219 is an apocalyptic number.

1230178219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230178219 is an equidigital number, since it uses as much as digits as its factorization.

1230178219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1230178219 is about 35073.8965471474. The cubic root of 1230178219 is about 1071.4930154821.

The spelling of 1230178219 in words is "one billion, two hundred thirty million, one hundred seventy-eight thousand, two hundred nineteen".