1268195119 has 2 divisors, whose sum is σ = 1268195120. Its totient is φ = 1268195118.

The previous prime is 1268195111. The next prime is 1268195141. The reversal of 1268195119 is 9115918621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1268195119 - 2³ = 1268195111 is a prime.

It is a super-2 number, since 2×1268195119² = 3216637719710848322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1268195111) 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, 634097559 + 634097560.

It is an arithmetic number, because the mean of its divisors is an integer number (634097560).

Almost surely, 2^1268195119 is an apocalyptic number.

1268195119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268195119 is an equidigital number, since it uses as much as digits as its factorization.

1268195119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 43.

The square root of 1268195119 is about 35611.7272678538. The cubic root of 1268195119 is about 1082.4188807894.

The spelling of 1268195119 in words is "one billion, two hundred sixty-eight million, one hundred ninety-five thousand, one hundred nineteen".