1171233197 has 2 divisors, whose sum is σ = 1171233198. Its totient is φ = 1171233196.

The previous prime is 1171233191. The next prime is 1171233229. The reversal of 1171233197 is 7913321711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1162741801 + 8491396 = 34099^2 + 2914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1171233197 - 2¹⁶ = 1171167661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1171233191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585616598 + 585616599.

It is an arithmetic number, because the mean of its divisors is an integer number (585616599).

Almost surely, 2^1171233197 is an apocalyptic number.

It is an amenable number.

1171233197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171233197 is an equidigital number, since it uses as much as digits as its factorization.

1171233197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 35.

The square root of 1171233197 is about 34223.2844274187. The cubic root of 1171233197 is about 1054.0983279947.

The spelling of 1171233197 in words is "one billion, one hundred seventy-one million, two hundred thirty-three thousand, one hundred ninety-seven".