1117290197 has 2 divisors, whose sum is σ = 1117290198. Its totient is φ = 1117290196.

The previous prime is 1117290103. The next prime is 1117290227. The reversal of 1117290197 is 7910927111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1041094756 + 76195441 = 32266^2 + 8729^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117290197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1117290197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117295197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558645098 + 558645099.

It is an arithmetic number, because the mean of its divisors is an integer number (558645099).

Almost surely, 2^1117290197 is an apocalyptic number.

It is an amenable number.

1117290197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117290197 is an equidigital number, since it uses as much as digits as its factorization.

1117290197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 38.

The square root of 1117290197 is about 33425.8911175155. The cubic root of 1117290197 is about 1037.6606061330.

The spelling of 1117290197 in words is "one billion, one hundred seventeen million, two hundred ninety thousand, one hundred ninety-seven".