1128118247 has 2 divisors, whose sum is σ = 1128118248. Its totient is φ = 1128118246.

The previous prime is 1128118223. The next prime is 1128118253. The reversal of 1128118247 is 7428118211.

It is a strong prime.

It is an emirp because it is prime and its reverse (7428118211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1128118247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1128118207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564059123 + 564059124.

It is an arithmetic number, because the mean of its divisors is an integer number (564059124).

Almost surely, 2^1128118247 is an apocalyptic number.

1128118247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128118247 is an equidigital number, since it uses as much as digits as its factorization.

1128118247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 35.

The square root of 1128118247 is about 33587.4715779560. The cubic root of 1128118247 is about 1041.0019458334.

The spelling of 1128118247 in words is "one billion, one hundred twenty-eight million, one hundred eighteen thousand, two hundred forty-seven".