1129968193 has 2 divisors, whose sum is σ = 1129968194. Its totient is φ = 1129968192.

The previous prime is 1129968181. The next prime is 1129968227. The reversal of 1129968193 is 3918699211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121714064 + 8254129 = 33492^2 + 2873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1129968193 - 2⁹ = 1129967681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1129968143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564984096 + 564984097.

It is an arithmetic number, because the mean of its divisors is an integer number (564984097).

Almost surely, 2^1129968193 is an apocalyptic number.

It is an amenable number.

1129968193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129968193 is an equidigital number, since it uses as much as digits as its factorization.

1129968193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 49.

The square root of 1129968193 is about 33614.9995240220. Note that the first 3 decimals coincide. The cubic root of 1129968193 is about 1041.5706644866.

The spelling of 1129968193 in words is "one billion, one hundred twenty-nine million, nine hundred sixty-eight thousand, one hundred ninety-three".