1129275197 has 2 divisors, whose sum is σ = 1129275198. Its totient is φ = 1129275196.

The previous prime is 1129275131. The next prime is 1129275263. The reversal of 1129275197 is 7915729211.

It is a balanced prime because it is at equal distance from previous prime (1129275131) and next prime (1129275263).

It can be written as a sum of positive squares in only one way, i.e., 1024704121 + 104571076 = 32011^2 + 10226^2 .

It is a cyclic number.

It is not a de Polignac number, because 1129275197 - 2¹⁰ = 1129274173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1129275107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564637598 + 564637599.

It is an arithmetic number, because the mean of its divisors is an integer number (564637599).

Almost surely, 2^1129275197 is an apocalyptic number.

It is an amenable number.

1129275197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129275197 is an equidigital number, since it uses as much as digits as its factorization.

1129275197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 44.

The square root of 1129275197 is about 33604.6901042102. The cubic root of 1129275197 is about 1041.3576933260.

The spelling of 1129275197 in words is "one billion, one hundred twenty-nine million, two hundred seventy-five thousand, one hundred ninety-seven".