1129823393 has 2 divisors, whose sum is σ = 1129823394. Its totient is φ = 1129823392.

The previous prime is 1129823389. The next prime is 1129823501. The reversal of 1129823393 is 3933289211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 721298449 + 408524944 = 26857^2 + 20212^2 .

It is a cyclic number.

It is not a de Polignac number, because 1129823393 - 2² = 1129823389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1129823393.

It is not a weakly prime, because it can be changed into another prime (1129823363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564911696 + 564911697.

It is an arithmetic number, because the mean of its divisors is an integer number (564911697).

Almost surely, 2^1129823393 is an apocalyptic number.

It is an amenable number.

1129823393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129823393 is an equidigital number, since it uses as much as digits as its factorization.

1129823393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 1129823393 is about 33612.8456546006. The cubic root of 1129823393 is about 1041.5261718256.

The spelling of 1129823393 in words is "one billion, one hundred twenty-nine million, eight hundred twenty-three thousand, three hundred ninety-three".