1115782319 has 2 divisors, whose sum is σ = 1115782320. Its totient is φ = 1115782318.

The previous prime is 1115782271. The next prime is 1115782331. The reversal of 1115782319 is 9132875111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115782319 is a prime.

It is a super-2 number, since 2×1115782319² = 2489940366786035522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115782379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557891159 + 557891160.

It is an arithmetic number, because the mean of its divisors is an integer number (557891160).

Almost surely, 2^1115782319 is an apocalyptic number.

1115782319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115782319 is an equidigital number, since it uses as much as digits as its factorization.

1115782319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 38.

The square root of 1115782319 is about 33403.3279629441. The cubic root of 1115782319 is about 1037.1935922766.

The spelling of 1115782319 in words is "one billion, one hundred fifteen million, seven hundred eighty-two thousand, three hundred nineteen".