1312144219 has 2 divisors, whose sum is σ = 1312144220. Its totient is φ = 1312144218.

The previous prime is 1312144193. The next prime is 1312144243. The reversal of 1312144219 is 9124412131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312144219 - 2⁵ = 1312144187 is a prime.

It is a super-2 number, since 2×1312144219² = 3443444902910239922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312144819) 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, 656072109 + 656072110.

It is an arithmetic number, because the mean of its divisors is an integer number (656072110).

Almost surely, 2^1312144219 is an apocalyptic number.

1312144219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312144219 is an equidigital number, since it uses as much as digits as its factorization.

1312144219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 1312144219 is about 36223.5312883766. The cubic root of 1312144219 is about 1094.7808458920.

The spelling of 1312144219 in words is "one billion, three hundred twelve million, one hundred forty-four thousand, two hundred nineteen".