1115887739 has 2 divisors, whose sum is σ = 1115887740. Its totient is φ = 1115887738.

The previous prime is 1115887657. The next prime is 1115887753. The reversal of 1115887739 is 9377885111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1115887739 - 2⁸ = 1115887483 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115887789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557943869 + 557943870.

It is an arithmetic number, because the mean of its divisors is an integer number (557943870).

Almost surely, 2^1115887739 is an apocalyptic number.

1115887739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115887739 is an equidigital number, since it uses as much as digits as its factorization.

1115887739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 50.

The square root of 1115887739 is about 33404.9059121561. The cubic root of 1115887739 is about 1037.2262562062.

The spelling of 1115887739 in words is "one billion, one hundred fifteen million, eight hundred eighty-seven thousand, seven hundred thirty-nine".