12175136249 has 2 divisors, whose sum is σ = 12175136250. Its totient is φ = 12175136248.

The previous prime is 12175136213. The next prime is 12175136251. The reversal of 12175136249 is 94263157121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8366395024 + 3808741225 = 91468^2 + 61715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12175136249 is a prime.

Together with 12175136251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12175136209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6087568124 + 6087568125.

It is an arithmetic number, because the mean of its divisors is an integer number (6087568125).

Almost surely, 2^12175136249 is an apocalyptic number.

It is an amenable number.

12175136249 is a deficient number, since it is larger than the sum of its proper divisors (1).

12175136249 is an equidigital number, since it uses as much as digits as its factorization.

12175136249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The spelling of 12175136249 in words is "twelve billion, one hundred seventy-five million, one hundred thirty-six thousand, two hundred forty-nine".