1268065219 has 2 divisors, whose sum is σ = 1268065220. Its totient is φ = 1268065218.

The previous prime is 1268065171. The next prime is 1268065237. The reversal of 1268065219 is 9125608621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1268065219 - 2²⁵ = 1234510787 is a prime.

It is a super-2 number, since 2×1268065219² = 3215978799275035922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1268065289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634032609 + 634032610.

It is an arithmetic number, because the mean of its divisors is an integer number (634032610).

Almost surely, 2^1268065219 is an apocalyptic number.

1268065219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268065219 is an equidigital number, since it uses as much as digits as its factorization.

1268065219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1268065219 is about 35609.9033837499. The cubic root of 1268065219 is about 1082.3819224876.

The spelling of 1268065219 in words is "one billion, two hundred sixty-eight million, sixty-five thousand, two hundred nineteen".