1171492762249 has 2 divisors, whose sum is σ = 1171492762250. Its totient is φ = 1171492762248.

The previous prime is 1171492762247. The next prime is 1171492762369. The reversal of 1171492762249 is 9422672941711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1150670272249 + 20822490000 = 1072693^2 + 144300^2 .

It is a cyclic number.

It is not a de Polignac number, because 1171492762249 - 2¹ = 1171492762247 is a prime.

Together with 1171492762247, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1171492762249.

It is not a weakly prime, because it can be changed into another prime (1171492762247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585746381124 + 585746381125.

It is an arithmetic number, because the mean of its divisors is an integer number (585746381125).

Almost surely, 2^{1171492762249} is an apocalyptic number.

It is an amenable number.

1171492762249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171492762249 is an equidigital number, since it uses as much as digits as its factorization.

1171492762249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 55.

The spelling of 1171492762249 in words is "one trillion, one hundred seventy-one billion, four hundred ninety-two million, seven hundred sixty-two thousand, two hundred forty-nine".