1118497547 has 2 divisors, whose sum is σ = 1118497548. Its totient is φ = 1118497546.

The previous prime is 1118497517. The next prime is 1118497561. The reversal of 1118497547 is 7457948111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1118497547 - 2¹⁴ = 1118481163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1118497517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559248773 + 559248774.

It is an arithmetic number, because the mean of its divisors is an integer number (559248774).

Almost surely, 2^1118497547 is an apocalyptic number.

1118497547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118497547 is an equidigital number, since it uses as much as digits as its factorization.

1118497547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 47.

The square root of 1118497547 is about 33443.9463430977. The cubic root of 1118497547 is about 1038.0342388559.

The spelling of 1118497547 in words is "one billion, one hundred eighteen million, four hundred ninety-seven thousand, five hundred forty-seven".