1115842747 has 2 divisors, whose sum is σ = 1115842748. Its totient is φ = 1115842746.

The previous prime is 1115842729. The next prime is 1115842813. The reversal of 1115842747 is 7472485111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1115842747 - 2⁷ = 1115842619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115846747) 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, 557921373 + 557921374.

It is an arithmetic number, because the mean of its divisors is an integer number (557921374).

Almost surely, 2^1115842747 is an apocalyptic number.

1115842747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115842747 is an equidigital number, since it uses as much as digits as its factorization.

1115842747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 40.

The square root of 1115842747 is about 33404.2324713501. The cubic root of 1115842747 is about 1037.2123158819.

The spelling of 1115842747 in words is "one billion, one hundred fifteen million, eight hundred forty-two thousand, seven hundred forty-seven".